"The Natural Philosopher" wrote in message
.. .

I thought I would start a new thread..because having found the data on the
Tzero, it bears a bit more discussion.

http://www.acpropulsion.com/ACP_Bib_results.pdf

They got - at an average speed of 50mph - a figure of 217Wh per mile

Check out
http://www.universalelectricvehicle.com
300 miles on Lith Ion batteries and circa $40,000.

"Target Price: $38,000 to $45,000

The Electrum Spyder is an exciting 2 passenger convertible all electric
freeway flier that will be available in a limited production. Powered by a
288 vdc system, the Spyder provides an effective range of up to 150 miles at
a top speed governed at 80 miles an hour on a full charge using nickel zinc
batteries, standard in all of our vehicles. As with all of our Electrum
series the Spyder is available with optional lithium ion batteries with a
range of up to 300 miles on a single charge."