Dodge EV and Tesla Roadster, separated at birth?
(Credit: Popular Mechanics)Since yesterday's unveiling of Chrysler's electric vehicle concepts, there have been many parallels drawn between the little electric hot-rod Dodge EV and the electric car that changed our perception of green, the Tesla Roadster. As it turns out, these cars may have more in common than you think.
Platform
On the outside at least, the Dodge EV appears to be a simple rebadge of the Lotus Europa.
(Credit: Creative Commons)Both vehicles are based on Lotus Group platforms. The Tesla Roadster is based on the Lotus Elise platform, but is supposedly an all-new chassis, having had its exterior sheet metal replaced by a lightweight carbon fiber composite and a styling that is unique to the Tesla. The Dodge EV appears to simply be a rebadged Lotus Europa S, a slightly larger and lesser known Lotus grand tourer, unveiled in 2006 and not available for sale in the U.S. It seems that Lotus' tradition of lightweight vehicles with exceptional chassis translates well into the electric age.
Performance

Despite having less raw power, the Tesla Roadster appears to win our a hypothetical race to 60 mph.
(Credit: Creative Commons)The Tesla's power flows from a lithium ion battery pack to an 184 kilowatt electric motor where electric energy is converted to 200 foot-pounds of torque (248 horsepower), which is sent through a single-speed transmission to the wheels. All of this technogiggery, combined with a lightweight carbon composite body, results in a zero-to-60 time of 3.9 seconds and an electronically limited top speed of 125 mph.
The Dodge EV also utilizes lithium ion battery tech, but upgrades to a 200 kilowatt electric motor to produce 268 horsepower and a whopping 480 foot-pounds of torque, more than double the torque of the Tesla. In spite of gobs of power, its zero-to-60 time is claimed to be about 5 seconds, with a top speed of 120 mph, which is slower than the Tesla. This is presumably due to a slightly heavier chassis of the Europa and the ludicrous amounts of wheelspin that results from putting 480 foot-pounds of torque down in a Lotus. Chrysler hasn't released any information about the transmission, which no doubt also plays a role in the 0-60 time.
Range and charging
The Tesla charges in 3.5 hours using its proprietary high-power charger and longer using 220 volt or 110 volt outlets. Keep the pedal off of the metal and the Tesla will take you and one other passenger a maximum of 220 miles between charges, which is an estimated equivalent of 256 mpg. No, that's not a typo.
Driving range on the Dodge EV is down to a claimed 150-to-200 mile range between charges, which roughly converts to a still stellar 132-to-176 mpg. The Dodge charges to full in 4 hours on a 220 volt outlet and 8 hours on 110 volts.
The future
To a visitor from space, the Tesla Roadster and the Dodge EV would be so similar on paper in features and performance, that they could be mistaken for coupe and convertible variants of the same vehicle. In the real world, their performance on public roads in the hands of regular people still remains to be seen.

It seems that Lotus is the chassis of choice for EV tuners.
(Credit: Lotus Group)Some enthusiasts, however, have chosen not to wait for the automakers and have decided to roll their own EV hot rods. For example, there's an article and video over on Zerocarbonista that details the development of an electric car prototype based on the Lotus Exige, which has a Tesla matching sub-four second zero-to-60 time. This one-off model ups the ante by eschewing the transmission altogether, instead using separate electric motors connected to each rear wheel. Wow.


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by pbanning
September 25, 2008 1:43 PM PDT
- Seeing some recent announcements of North American car manufactures new electric cars triggered a few concerns. Coming from a country that sells electricity to the USA, I can see that there may be a handful of countries that could handle the new rush to electric/hydrogen powered cars but what about the other 95% of the automobile consumer world. The electricity available for a direct turn around in types of cars we drive would put electricity amperage at the price of gold and the pollution created through adapting old generating technology would make the whole world look like Beijing before and after the Olympics this year. Do not get me wrong because I too do not like paying for expensive gasoline; also I am a true believer in developing technology that improves our earths environment. The auto industry is only trying to protect its investors by making a quick swing to alternative solutions and prop up sales to get back to generating a profit. The producing of the energy supply is a government issue, but hydrogen and electricity cannot be made today in quantities predicted without creating more pollution than the current automobiles worldwide. The world is concentrated on the economic turmoil in the financial markets yet every week it seems that the large auto manufactures has a new electric/fuel-cell car to announce. Like the CAFÉ fleet regulations in the USA a world organization needs to track the amount of available energy to the amount of the new technology cars produced. A worldwide monitoring group that will overlooking a sector-by-sector energy produced and amount of new technology cars that can be sold. If the auto industry just keeps selling the new electric/hydrogen car without giving governments time to react then coal/atomic-generating systems will be the only quick fix. Although it is nice to see the consumer market warming up to these new thought to be environmentally friendly products; really it is going to be a polluting nightmare and the blame will be on government not on the manufactures. Control of the speed to new technology has to be put in place or just like the finally realized non-regulated mortgage business and its damage to the Financial Sector today. In 10 years we will have Auto manufactures sitting with millions of new cars and no means to power them or worldwide skies that block most of the precious sunlight.
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by NoelMcleod
September 25, 2008 7:45 PM PDT
- Hey Paul you are forgetting that MOST EV's will be recharged with a 110V cord overnight, possibly with a timer. This is when the wind and hydro generated power (and a fair chuink of nuclear) would otherwise GO TO WASTE as we can't yet store bulk electric power. So long as people can cope with the driving range and charging limitations, the EV's - the Volt, Prius plug-in, Caravan electric-gas etc. ARE going to change the economics of gasoline.
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(3 Comments)Thanks
Paul
PLUS, at least one of the big US utilities has said they can likely accomodate EVs faster than they will come on stream due to manufacturing rates and cost. Being from Canada as well, I paid attention to the point-in-time usage of power during the summer - it's available on-line from OPG- or was, anyway - and the difference between 4:00 pm and 4:00 am is HUGE.