World’s Most Efficient Electric Car Gets 26,135 MPGe

AUG 3 2016 BY ERIC LOVEDAY 30

Looks Quite Aerodynamic

Looks Quite Aerodynamic

Guinness World Records has verified the electric car developed by the TUFast Eco Team as the world’s most efficient EV.

The university team (Technical University of Munich) car, called the eLi14, first competed in efficiency tests back in 2014. Some updates made to the car in 2015 and 2016 resulted in a far more efficient EV.

The numbers are now in…and official. Here are the efficiency results, according to Gizmag:

“After fixing a few minor issues on the installation lap, the team managed an average energy use of 1142 km/kWh (710 mi/kWh). Having banked one run, the team tweaked the speed controller and tire pressure in search of more.”

“What they got was 1232 km/kWh (765.53 mi/kWh). That’s the equivalent of about 0.009l/100km (26,135 US mpg), which would theoretically allow the car to cover 10,956 km (6808 mi) on just one liter of 95 RON petrol.”

Below is a German language video on the record-setting run:

Source: Gizmag

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30 Comments on "World’s Most Efficient Electric Car Gets 26,135 MPGe"

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No fifth seat? Hmmph.

Seriously though, why not put some solar panels on it? At that efficiency seems like they could pull in enough solar energy to run until the sun sets.

Solar panels.

My guess – Too heavy!

Worked on the GM Sunraycer and that was back in the 80’s.

If the idea is to make it go as far as possible on a limited amount of energy why would you put solar panels on it?

I’m thinking for the World Solar Challenge race.

There is a separate contest for that.

That is utterly amazing though . . . perhaps literally unbelievable. I don’t believe that they could charge it up 34 KWH of electricity and then drive 26,135 miles.

Why does their electric car have a rat tail? Now that will sell. (GRIN).

Seriously though, I don’t accept these numbers without independent verification to rule out cheating. It needs testing by a neutral 3rd party, such as NASCAR engineers, that aren’t their friends.

IMHO, as a former professional engineer, I can believe 400 MPGe not 26,135 in an atmosphere with friction. Simple road friction with tires alone make these numbers impossible, aside from wind drag.

Did they use hidden solar cells or solar film stretched over skin? That is okay if its disclosed to us, but its not fair to call that 26,135 MPGe.

Did the driver have a hidden pedal? We don’t know; there is NO independent examination for cheating. Its a big issue: NASCAR still has to certify cars for racing, and they find people cheating in hundreds of small ways, from nitrous oxide carried by drivers, to gas hidden away in fat fuel lines!

Maybe its simple: did these clever dudes just wait for a strong wind to blow them down the track? Whatever they did, I think these numbers are physically IMPOSSIBLE, without some kind of hidden power source, like solar cells or a human pedaling!

Yeah, I am having a hard time believing that actually number. I can see more than 400 possible . . . but 26,135? That seems ridiculous.

Oh, don’t be silly both of you…

This *was* independently rated. Watch the video. There was (at a minimum) a Guinness World Records observer, who measured, approved and allowed the Guinness sticker to be placed on the vehicle after testing.

As to 400, even a heavy production BEV is capable of getting close to that, if you drive it slowly enough.
And the VW XL1 got 260 MPG without even being an EV.

By contrast, the weight of this particular baby is probably less than the weight of its driver, who was a jockey-like petite team member weighing way less than 50kg.

My electric assist bicycle can get 9 Wh/mile (400 MPGe) at the 15 mph they were doing…an order of magnitude better than a Tesla. This is two orders of magnitude better.

The duffus from Audi talking about how far it could go on a liter of gas misses the entire point that an ICE can not be made anywhere near as efficient.

Oops! Move that decimal point. 400 MPGe (84.25 Wh/mile) is what a Zero motorcycle gets. Four time as good as a Tesla…not quit ten times as good.

Yup, your e-bicycle is about 10x better than a Zero, but the problem with 2-wheelers at any interesting apeed is atrocious aerodynamics, unless they have huge full-body fairings like Electric Terry.

710mi/kWh translates to 1.4wh/mile, so this car is actually better than your bicycle, but because of hypermiling speeds and a lightweight driver.

Yes. As I said, my bike is an order of magnitude better than a Tesla, and this car is two orders better.

As far as interesting speeds on a two wheeler: As a kid I was into motorcycles and had enough wrecks for a lifetime. In my mid-twenties I rediscovered bicycles and have found them much more interesting ever since. With the advent of lithium batteries I added electric assist, and am at 29,481 miles in under five years.

Over 8,000 mpg has been done with gas engine. Given that EVs tend to be about three times more efficient, this result seems very reasonable.

Sorry, I made a conversion error. Winner of Shell eco-marathon gasoline category this year was just over 5,000 mpg, not 8,000 mpg. 26 kmpg is very high compared to that.

This years gas winner is not the all time best. That was 12,665 mpg-US set in 2005 per Wikipedia.

https://en.wikipedia.org/wiki/Shell_Eco-marathon

A standard Renault Twizy does 260 MPGe at an average speed of 40 mph, and it weighs nearly 500 kg and is an aerodynamic catastrophe.

Any standard chinese production electric scooter does 500 MPGe at 30 mph and without any aerodynamic tuning out of the box.

If you add an aerodynamic body kit, you easily exceed 1000 MPGe without any other mods or speed reduction.

Ok Audi… very nice sponsoring this and producing the video.

Now how about giving us some real production EVs sometime soon, beyond your single, maybe-16-mile, overpriced hybrid?

I have attained 207MPGe driving around town for 10 miles at scooter type speeds (20-30mph) in my i3 BEV. 6.2 M/kWh. So yes, 400MPGe in a small, light(<1400lb), aerodynamic vehicle that weighs half as much as the i3 could yield 400MPGe, not 26135 MPGe.

Yup. My favorite vehicle of all time went around the world, six years ago, on 100 Wh/mile from the wall, about 84 Wh/mile from the battery, so 400 MPGe by the EPA method.

http://www.evalbum.com/4713

Talking about MPGe is pointless and confusing. You might as well talk about how much solar energy hits your car as you drive (about 164 watts per square meter over 24 hours on global average) since you can’t run an EV directly on gasoline any more than you can drive it directly off sunshine.

Thank you.

Arguing over MPGe numbers is every bit as useful as arguing over how many angels can dance on the head of a pin, when it comes to a pure EV… and this 3-wheel electric bicycle is indeed an EV, specifically a BEV; altho not a “car”.

Miles per kWh… now that is a useful metric for EVs!

That is NOT an electric car!

That is closer to an electric lay-down bicycle than it is to a car.

Sheesh.

Reminds me of a comment made long ago on the EVcast webcast:

“That’s… not a car.”

And that comment was about the “ZENN”, a small NEV which nonetheless could seat four.

This tiny three-wheeled electric bicycle, barely big enough for one rather small person to be wedged into lying flat, is much farther away from being a real car!

Not a car, that is what I have always said about SUVs. A “car” is whatever people decide to call a car.

Go to 2:33 in the video, you will clearly see that it says “most efficient ELECTRIC VEHICLE”. No one claiming it is car (that I can tell, I don’t speak German). To the posters further above going on about MPGe… as others pointed out, useless metric since it isn’t burning gas, and MPG is a terrible metric anyways since it isn’t linear. From 10mpg to 20mpg is a much larger increase in fuel efficiency than 50mpg to 60mpg. Looking at it the other way around is much more intuitive; gallons/100 miles (or as we do up here, L/100km) – but for the EV, Wh/mi (Wh/km). My Leaf is ballpark 150 Wh/km in regular conditions. Best trip ever was 180 km on a charge, average speed about 50 km, up and down about 1,000 m elevation and attained about 100 Wh/km. My electric cargo bike on the other hand (extremely terrible aerodynamically!), I can easily attain 10 Wh/km, and that is dragging kids and groceries around town at 20 km/h. The trike in this video was an order of magnitude better at about 0.9 Wh/km. Given the effort put into it, that it is lighter than my bike, and far more… Read more »

Kootenay EV Family said:

“Go to 2:33 in the video, you will clearly see that it says ‘most efficient ELECTRIC VEHICLE’. No one claiming it is car…”

The headline of this article refers to it as an “electric car”, so at least one person is asserting that it is.

I generally enjoy your posts PP, but in this case you seem to be acting intentionally obtuse. I did not feel it necessary to explicitly state that the creators and Guiness were not claiming it as a car.

Only InsideEVs editor added “car” in the title of their article, which most of the commenters jumped on (and seemingly had not watched the video where they make no such claim, hence my pointing it out.)

It is a car, not a big car, not a comfortable or practical car but a car none the less.

Absolutely. This fits the Venn diagram of cars at least as well as the ubiquitous urban tractor.