Picture “Save nature” Chris Burkard Photography.
Last updated 7 February 2025
CHANGE THE DRIVE ONLY, NOT THE CAR
We designed and calculated the following approach to quickly convert your 4×4 car from a polluting fuel burner to a clean electric car/SUV/truck with still 4-wheel driving. But quieter, stronger and safer than before:
We throw away the engine, gearboxes and axles. We dismantle the whole fossil-oil drive system and put a clean electric drive system in its place, built exactly where the old differentials were. In a new shaft, all in 1. So we provide you to use green electricity only, that’s actually a huge CO2 saving of almost 100 per cent. All pollutants released during combustion for driving are history.
Owners are a lot cheaper to drive clean as a bonus. Based on the TCO = total cost of ownership: all the costs involved in owning and driving a car. Estimated the monetary gain to be around 60 to 75 per cent evey mile. Including the entire investment and repayment. Break even in 4 to 6 years. Never pay fuel costs or maintenance fees again was our own starting point. Extra: your 44x car (or truck) has become more valuable, while fuel cars are going to drop sharply in price until they are banned from driving them at all. To the scrapyard as last ride. That’s going to happen sooner than you think.
We have been thinking about, since 2015, how to cleverly convert our fuel-powered 4×4 (car/SUV/truck) into an electric-powered one. We have studied all the possibilities for one year. Started ‘retrofitting’ fuel-driven 4×4 cars to electric. That is, fossil combustion engine and gearboxes and petrol tank out, clean electro engine and re-used batteries in. Not only good for the environment, but also for the driver’s wallet. Indeed, 4×4 driving on electricity proved cheaper to run than when fossil fuel is involved.
A rigorous step, we came to the following solution: build the added electric motor into the axle, not in the car. By far the highest efficiency between the battery and the road: 93%. A winner in comparison to other methods leaving the gearboxes in. Smaller and less expensive batteries are needed for the same range now. And batteries are heavy too, so less weight to carry too.
The most interesting thing came later: tailored to all 4×4 vehicles relatively easy to do. You are already reading a lot of information in this small piece of text.
Here is the idea of what we are doing The yellow part is our e-motor, in the background you can see the old differential. Looks easy. Only that strong, small and light electric motor was not made yet. Which we had to design and build ourselves. That’s why it took so long. This is the most complex way to swap.
We certainly don’t do only Land Rovers. With small modifications of the electric axle, they are suitable and tailor made for all off-road vehicles. Make all 4×4 cars electric, that’s our goal. Our work is done, we are now looking for money to make 50 axles, then 70, then 100, then 500 and then more. The worldwide customers are eagerly waiting at the door.
We have to stop polluting now is our wish. For this we have made the effort and invested money ourselves since 2015. Now a like-minded financial party has to join us to grow further.
Even new 4×4 cars to be made to burn fuel in the furture. We will be producing and selling our e-axles around the world for the next 30 years or more. Our target cars, runs from 1965 to 2050, how nice is that?
We bring the old engine and gearboxes and differentials to be melted down into new metal to be used again. This way, less new material is needed from the earth which also saves a lot of energy and dirt. Circular on and on. 2 days to remove all the old stuff, 2 days to install all the electrics, charging and driving after 4 days clean? Yes, we make that possible.
Change both axles, not the whole 4×4 car.
We give the cost right on the 1st page: €34.000 for 2 electric axles and between €5.000 and €19.000 for the batteries driving 400km/250miles range into 85kWh storage. No need to ask the cost by email from others and then be told it costs 125.000 minimum and bring the car overhere. (1 €EUR roughly 1 USD/GBP) €5.000 22kWh storage is for 100km/60miles range (that’s enough for park managers and landscape workers).
That’s it, the rest of the 1 hour reading time is about technical explanations, where we safely mount the batteries, why electric driving is cheaper and how we are going to supply you worldwide and how do you actually calculate the savings in money and toxic pollution? Our entire conversion from fuel to 100% electric is done in 4 days by your own local garage. Thats the e-Rovers way.
We tell the whole story here.
Modern 4×4 (obove) have independent front axle drive (with separate pitch axles) and and rigid rear axle. We can also supply those. The e-motor is the same, the attachment is different.
Welcome to our Dutch team. We developed an electric “powerhouse” and bolted her in the middle of the newly developed front- and rear lightweight axles. So between the wheels (so not in the car). We started its development in 2016. We developed and build this strong electro motor in the Netherlands. (it was not for sale) So we are independent of any manufacturer. Tailor-made for all 4×4 vehicles.
Sometimes we hear: “are we a green community?” No, we produce and sell electric axles only (and battery boxes). But we do answer all the questions we got since 2016. That’s why we explain much more here than just the commercial talk. Climate technologies are often more efficient and cheaper than fossil fuels.
Brief explanation how we do it
Explained over 1 cup of coffee: “You have 2 axles (drive shafts) located between the (front and rear) wheels underneath an off road car. The two old axles will be swapped for our two new electric axles. It fits your car, tailor made. We put our electric motor into the centre of the axle. You understand that your internal combustion engine is no longer needed and will be removed. You are going to drive 100% electric from now on. You can also get rid of your gearbox, transfer box and the old drive axles, including the old heavy differentials (get melting down: re-use). Short time to assemble our set. Solid strong watertight bolting the heated battery boxe(s) safely between the chassis (no batteries in the car neither). The electric motor itself can also tailor made with drive shafts, which every modern 4×4 use, then the battery boxes are in the car. Because then there will be no more chassis. Another cup? “.
High efficiency is the reason for this construction. This gives e-Rovers by far the highest result: 93% efficiency. Put any e-motor simply on the gearbox and keep the original drive, you will not get beyond 60% efficiency. Loads of internal resistances in these gearboxes. All those gear resistors eat into your distance (range) you can drive away. Note: all the amount of current you carry is called Kw and is fixed. You have to carry 35% more batteries to get as far as we do. That is 35% more expensive and heavier and charging longer and is there room for it in the car? There is another important drawback to leaving the original drive system intact: it cannot handle the forces of the much stronger electric motors, and is thus more likely to fail. Our new shaft is designed to handle 3x more power. It will never fail.
One: we build our electro motor in a new rigid axle. Two: or our electro motor with separate drive shafts like all modern 4×4 cars using today. With drive shafts, we bolt the e-motor to the chassis. We can handle all drives, all 4×4 brands.
Our unique 3 in 1 electric motor, the differential and the high and low gears also inside the stong body. The secret of our designers. We won’t reveal here exactly how we manage that. That’s our secret.
Weights. Our electric motor weighs 76 kg, an original differential weighs 36 kg. Our aluminum axle weighs 21 kg less (than iron one) that leaves 19 kg additional unsprung weight. This is ok, after all a tuft of wet mud also weighs something like that. A change to aluminum rims instead of steel we reduce this to +6 kg in total. You can simply keep your original shock absorbers, brakes and springs/airsuspention. The handling remains exactly the same. In addition, more and more offroad tires are no longer re-inforced with a steel belt but with nylon, which again is lighter than steel.
Because we remove the fuel engine and all 3 gearboxes, radiator, tank etc. we use that 295kg of weightloss for 85kWh batteries (the long range package), we stay exactly the same curbweight as the original fuel car. With the small battery package we are even 100kg lighter than the original 4×4 car. A great result. (Kilogram to Pound: 1Kg=2.2Lbs)
“One complicated design made but a lifetime benefit of a lighter and less expensive battery, giving a great range to drive and a smaller battery also charges faster”, explains the creator a bit more . In 2015, our team figured out what the smartest conversion should be look like. In doing so, we deliberately neglected to think about easy, fast, simple construction and lots of earning. Gave an additional advantage:
The work. Your own garage (or shop) around the corner can do the job, no matter where you live in the world. We ship the set in a strong box to you with a thorough installation manual. Aided by video explanations if needed. With the easy conversion job, you make huge saving on work hours to switch over:
Wrenching time: 3 days all iron out, 2 days EV set in. Charging and drive clean. In 5 days total, from toxic fuel to 100% electric driving. From the first day you also drive much 2/3rd cheaper per km/mile. That calculation is further down.
There are a lot of 4×4 cars driven at governments today !
We want to challenge all governments. We have a special page for you to get over the clean line. Customize your organization. We also lease and are manufacturer too (partnering). So in terms of warranty you will be fine. Better even, you are now clean government as an example to the citizens around you:
Citizens pay taxes to pay the government, to work for the community. It’s that simple. Governments must now take a big step forward: lead by example in our opinion.
For less than 45K (euro/dollar/pound) you can make any 4×4 (pickup-) car you already own 100% electric (middle range). Go to the page Prices & Specs for our Toyota Landcruiser convertion. Just new for sale today out of Japan factories. A brandnew (converted by e-Rovers) electric Toyota 4×4 for € 75K.
The average emissions of a 4×4 car with a fuel engine driving 15,000 kilometers (9,400 miles) annually , is over 6,600 kg of CO₂. More than twice as much as a passenger car. For example, 1 liter of gasoline releases about 2,270 grams of CO₂ while burning 1 liter of diesel releases 2,600 grams of CO₂. A 4×4 car consumes about 1 liter of diesel every 10km (6miles). With gasoline this is much higher: every 10km (6miles) about 6. This is a lot and very polluting, as you know by now. Note: there are about 1 million 4×4 cars on the road today. Every day. That’s a lot of pollution right? In addition to CO₂, there are many other pollutants released from combustion out of your car such as fine dust as particulate matter, NOx, methane and lead. Do something about it, it can be done.
We are currently having professional parties calculate the exact impact of our product on reducing pollution. These calculation includes making (re)use of the 4×4 car, battery and the materials to do the conversion. We are also looking at making the electric power. Calculations now give a factor of 90% cleaner than fuel driving. An important monitoring point today is the calculation of saved pollution per vehicle (rating for the same work done). Especially the calculation of exact how much it makes in pollution if you convert your 4×4 car to electric. While building a new 4×4 car or converting what we do. More about this on the last page (GreenReporting) To be continued.
Below a yellow Nissan pick-up used by a government department we convert to electric vehicle (EV):
We are the only ones to have adopted this solution, why?
By far the highest efficiency between the battery and the road: 93%. We remove all the gears inbetween the fuel engine and the wheels, a big difference from others. Why?
Gears only take power from the battery for nothing. Many gears are spinning around, all consuming energy. Halfway down the Challenge & Why Electric page we discuss in detail the gearbox.
We remove the fuel engine offcourse. It frees up a lot of space and weight, that we use for our e-drive now. Our SRM-electric motor has power from standstill. We have high- and low traction and lock-up too. So all those old gear-boxes and differentials are no longer needed. So melter, circular again. Re-use. Our SRM electric engine is a beast, now tempered by today’s electronics. (more about power loss in gearboxes, page petrolheads Challenge & Why Electric)
We can drive an ample distance of 400 kilometres (250 miles) with a battery of 85kWh. We can incorporate all types of batteries. We are building a smart electric drive and not going into the battery business. You can read all about it here.
Where do we stand today?
We are currently tested out and have made 7 electric drives. We are now looking for money to purchase 50 units of our electric engines. This costs a lot of money, but all 50 units have already been sold (in a preliminary contract). With this knowledge your invested money is back within 1 year and you remain a shareholder in this beautiful project e-Rovers.
Within europe today there are 311,000 diesel 4×4 cars driving around. Half of them are going to the scrap yard in the next 15 years. The other half have to be converted to electric (or petrol/gpl, same expenses to convert). We have a lot of questions from USA, Canada, NZ, Australia, Africa from everywhere for our EV sets. There are a few million 4x4s dirty fuel driving around the world today and also counting. Because the new fuel 4x4s, we are also going to convert later on. Join us now.
Fuel burning is slowly coming to an end, whether we like it or not.
All fuel cars are going to disappear in time, including your beloved off-road vehicle. So take it to the scrapyard or convert it. We see no other options, including hydrogen or synthetic fuel. Those are totally in-efficient to make and to use properly in your fuel car as an alternative to batteries and drive electric. Read more about this further on.
Try to accept, you have to make a decision now, because continuing to drive on fuel is more expensive, dirtier, slower and you are shifting the problem into the furture. With our EV conversion you are immediately 2/3rds cheaper in TCO. Every day, every trip, year after year. (TCO=total cost of ownership)
The good news is that converting to electric 4×4 driving is cheaper, than continue to drive on fuel.
The high conversion cost of 45.000 euro/dollar/pound you will get it back quick. With a car life of another 25 years, you will be cheaper 2/3rd or more every mile. A silent added value: half of your investment, comes right on top of the sales value tomorrow: you are selling an electric 4×4 and not a diesel 4×4 right? Every mile is cheaper than on fuel, so the investment comes back to the wallet a little every day. We are working (partnering) on a lease construction that you do not have to make the investment alone. Never buy fuel again, no more maintenance and often pay no road tax. Cheaper insurance.
Extra: your car now is also used as a extra home battery (solar, home storage, named bi-directional). This is speeding your pay-back.
Home battery: nor should you do it for the money. “I see the home battery as an indispensable part of the energy transition.” Reyer Gerlagh, professor of Environmental Economics at Tilburg University. He sees a big role for both battery parks and home batteries: the former at the national level, the latter at the neighborhood level.
In the furture fuel cars are rapidly declining in value, while electric cars remain stable, and your electric 4×4 car or truck is becoming even more valuable, as conversions are going to become more expensive in the coming years.
And also remember that the 4×4 car is not a general model, the reason why you ever bought it. You didn’t buy a Tesla or an Audi right? Apart from people whose work often requires them to drive in heavy terrain, their excuse: “I have to keep driving diesel because there is no strong electric 4×4 for sale right?”
No, there is an e-Rovers EV convertion set. (EV= electric vehicle)
Tailor-made for almost all types of off-road vehicles
Not only suitable for Land Rover’s or Toyota’s. Our set is for all existing 4×4 cars, from 1962 to today and also 4×4 cars still to be made in the future or not yet 100% electric (the mild-hybrids). We started this project electric in 2015 with own money to invest. Now we want to grow.
That is why it has become interesting for investors, because we can sell our sets still 30 year continuous from now. Check the new Land Rover Defender or Toyota Prado specs.
Note: even though we produce everything in the Netherlands, Europe, we’re Dutch, the site is in English because there is a growing interest in converting to 100% electric your 4×4 offroader world wide. Should the English rattle a bit, we’ll do our best …
START PROJECT
The first ideas arose in our team in 2015 to run our own Land Rovers cleaner. No more little diesel particles spreading around and see the smoke in the mirror. Or gpl/gas fumes out of our Range Rovers V8’s. It must be an economically smart thing to do, so a reasonable pay back period.
All our lives (since 1977) we have driven Land Rovers and Range Rovers, so right away we found the name: e-Rovers
We tackle the conversion to electric rigorously, we do not simply bolt an electric motor to the gearbox. To explain this briefly, we do manage to install our strong electric motor in the same place as the old differential: inside the axle. It is then easier and stronger to remake and redesign the whole shaft/axel, with the electric motor already in it. Your truck has 2 axels, front and rear, so 2 electric axels in one set.
Just replacing the fuel engine for an electro engine bolts on the gearbox, we rejected pretty quickly, because it leaves all the gearboxes intact and is technically more complicated to do than the way we choose. The car becomes too heavy, there is not enough space and where are the batteries going to be stashed away? Because of all these difficulties, this “easy” conversion is much more expensive.
We can make this set hundreds of times and send it around the world. Only then you make a big difference to make the world cleaner. Everyone has to do their part. We can make any 4×4 car 90% cleaner, this includes making the battery and solar to make and store electric power. Here we calculate over a period of 20 years from the day of conversion.
So, at the end of 2016 we started to designed and built our own electric motor, because the electric motor was not made anywhere yet. An additional advantage of building the electric motor in the company: we are now independent of any manufacturer, availability or geo politics. Nice to know. Our e-motor was finished in 2023, lavishly tested and ready to release.
The axel-set is produced entirely in the Netherlands and will be shipped worldwide. The converting is done at your local garage or shop. No high developing hours (costs) per truck is required and it takes very few man hours to install the set: 2 days maximum. (an experienced team of 2 does it in 1 day). Like to be a dealer, email, we like having you “on board”.
This was a long story about how we do it and what we do to change and why. But how does it drive? Driving an EV offroad car is fun, more torque, stronger roadholding, lower centre of gravity, faster and silent. Clean with bonus: your 4×4 truck “feels” like it have 280 Horspower overnight.
Yes, finaly the convertion we wanted for ourself in 2015 is for sale today.
CIRCULAIR why?
Circular is about much more than separating and recycling waste. It’s about consuming less and producing better. We need to go from as much as possible to as little as possible, as long as possible and as valuable as possible. Because what we consume now has a much higher price tag than what it has now. Loorbach and Stellinga NRCnov2024
With our EV conversion we retain 2/3rds of the vehicle and add modern clean technology to an existing vehicle, your own 4×4 offroader.
Financing in the furture
“Sustainability is no longer an afterthought,” concludes Kurznack. “It has become a core part of the business model, both for banks and for their customers.” Why? Banks must not only become more sustainable themselves, but also guide their customers through these complex changes. This requires new strategies, in-depth knowledge and intensive collaboration. Companies that lag behind risk losing access to financing. (ERM sustainability consultant, jan25 Change.inc))
The EU’s Corporate Sustainability Reporting Directive (CSRD) is just one of many new regulations forcing banks and their customers to be more transparent about their sustainability efforts. In particular, an investment such as e-Rovers need, is one where the knife can cut 3 ways (there are 3 big advantages in 1 deal).
At the forefront
The Netherlands are one of the most densely populated areas in the world and below sea level. We have too many cars, cows, pigs, chickens, iron- and chemical plants and tulips. Perhaps we feel the need doing something about global warming a bit more, even though we are a very small country. The sea is comming up because of heating up the earth … We are going to produce and supply these sets world wide, because:
There is no Planet B …
FROM PETROLHEAD TO CLEANHEAD
The “transition” to a cleaner World, we believe, will take at least 25 years in time or more.
For almost all brands we supply the sets.
NOTE
We use own pics and free pics (o.a. pintrest) or asked owners to share pics. All cars (trucks) pictured on this site we can convert to 100% electric within 3 days.
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Click on MENU on top or below, for the other 4 pages of information.
If you want to read everything here, you are about 45 minutes busy. Apart from the information about e-Rovers, we have also included a lot of information that covers the whole matter of why people in the world need to start changing. Our opinion is that it is already a quarter past 12 o’clock …
Duplications in text occur because multiple team members are working on it. The translated text may rattle a bit, we are working on this.
More rooftents on the last page. The modern new clean and electric holiday.
