Tesla Roadster Dyno Range Testing

Tesla Roadster Dyno Range Testing video. This shows some of the initial range testing for the Tesla Roadster on the dyno. Just posted this video for youtube users to see some of the dyno testing. From "Miles of Progress" by Andrew Simpson (Vehicle Systems Engineer) in Tesla Motors Blogs May 10th, 2007.

On September 24, 2007 the Tesla Roadster achieved 221* miles on the combined EPA cycle on a single charge.

The full numbers are:
230 mi EPA city
211 mi EPA highway
221 mi EPA combined (city/highway)

Specs:
0-60 in 4 seconds
248 hp @ 8500 rpm, 211 lb-ft @ 0 rpm
2690lbs

Efficiency (Plug to Wheel):
(221 miles/ 68.51kWh**) * (33705kWh/gallon) = 109mpg

*Update: Due to a wrong calibration on the dyno, the EPA range was overstated to be 245. The new result was updated on Dec 27, 2007.
**Based on 31kWh/100miles figure supplied by Tesla on their blog; charging inefficiency is already factored in, 31kWh is energy measured from the plug, not battery.
Real world mileage haven't changed, as the error was due to calibration not the actual efficiency of the car.
Real world mileage was "as high as 267 miles per charge in slow city driving to as low as 165 miles in aggressive highway driving."

Visit teslamotors.com for more info on the car.

Category:

Autos & Vehicles

Tags:

• Tesla
• Roadster
• dyno
• dynamometer
• range
• testing
• ev
• electric
• roadster
• sports
• car
• lotus
• epa
• 245
• miles

[BeNGALi4LFE]

top gear is sponsored by oil companies, so they always try to make electric cars not so great. the car they were using probably didnt have much juice left in it the first place and i remeber jeremy sed it takes 16 hours to charge wen its really 3-4.

[marshgre]

The Tesla Roadster has a radiatior.  Its batteries are liquid cooled.

[tevinm14]

That was the quietest dyno run in existence...

[TecnamTwin]

I bet you can't bike thirty miles to work everyday.

[walter0bz]

@marshgre - I still find that hard to beleive, (energy conversions/storage). I suppose the bulk combustion in the station might be more efficient than small combustion in the car? hmm.

What about solar+electric car versus food+human on bicycle (miles per area*time of panels/crops).

I can certainly imagine solar-electric-car wiping the floor with biofueled-car.

[marshgre]

@walter0bz An electric car charged even with coal or oil fired electricity is more efficient and will pollute less than a "normal" internal combustion car.

[marshgre]

@Andyman395 The motor and batteries still need airflow to stay cool when being put through this kind of test. Imagine that running this car on the road at the speed that it is running on the dyno there would be lots of air flow to keep things cool. This test takes place inside with the car stationary so they need a fan to keep it from overheating.

[SCJohnson77]

Ear muffs? lol electric car... durp

[tuugfo]

combustion engines ftw

[Andyman395]

I see you have a fan on the front of the car, what are you cooling?