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We all know that most electric cars are more energy efficient than their gasoline counterparts, but just how do you improve on the limited range most electric cars have?
For some automakers like BMW, the answer lies in making an electric car as lightweight as possible. For others, the answer is to make the battery pack as large as possible.
But for Japanese startup electric car firm SIM-Drive Corp., the answer lay in redesigning the humble automobile, making it as aerodynamic as possible.
The result?
The SIM-LEI, a bizarre-looking electric car powered by four, 65 kilowatt in-wheel motors which SIM-Drive Corp. plans to put into production in the next two years.
While we’ve seen the car before, yesterday the team responsible for the ultra-efficient car released a YouTube video detailing just why the unusual car looks the way it does.
And believe us, the SIM-LEI is unusual. Achieving a drag coefficient equivalent to the much-missed General Motors EV1 from 1996, the SIM-LEI can travel up to 186 miles on a battery pack barely bigger than the one found in the 2012 Nissan Leaf.
It can also seat four, can carry a large amount of luggage, and accelerates from 0-60 mph in under 5 seconds.
Looking something like a cross between a Toyota Prius and the Jetson’s car, the SIM-LEI isn’t pretty. With a long hood, tall body, fish-like rear and protruding side-impact beams on the outside of the vehicle, you could say it is only something its mother could love.
Explaining the design features in great detail from the shape of the rear-view mirrors to the car’s unusual posterior, the 3 minute video explains why the SIM-LEI looks the way it does.
And while we don’t think most car buyers will want to drive down the street in a SIM-LEI just yet, we can’t help but think if we’re looking at the car design of the future.
What do you think? Let us know in the Comments below.
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The hideous shape isn't the only reason for the excellent range, so at least this exercise has moved drive-train technology forward. I'm sure Nissan et al will review the advancements carefully, but will plan for an exterior that sells.
That Prius may have seemed strange-looking for some people, when it was introduced, but with that shape’s contribution to performance efficiency, Priuses shaped like that seem to be becoming rather well accepted, now. Maybe people are comprehending better the contribution body-shape has to a car’s efficiency, beyond mere “styling” aesthetics (as important as aesthetics may be toward sales, itself).
And it is certainly the quickest and roomiest of this elite class. The other cars that are at the top of the list: the Edison2 VLC (which has lower aero drag at Cd of 0.161, but lags on drivetrain efficiency a bit), the early Aptera prototype, and the VW L1 prototype.
Other cars that are close to this efficiency are the Illuminati Motor Works 7, the GM EV1, Dave Cloud's Dolphin, and the FVT eVaro. The DBM Energy Kolibri powered A2 is a laggard compared to these...
(con't.)
The VLCe has the shortest range, followed by the EV1. The Dolphin, SIM-LEI, and 7 are all very close with 200+ range. And obviously the L1 and the eVaro have range because of their gen sets.
Shameless plug: I am hoping to build a 5 seat electric car -- open source design called the CarBEN EV5, and with a ~56kWh pack it should easily go 300-400 miles and maybe even 500 miles at 55mph. I'm aiming for lower aero drag than the VLCe, and if it is, then this range is quite possible.
Neil
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