More seriously on the (battery) size matters, I get the transient benefits of even a tiny battery like that but from a utility point of view even 10kg more battery weight at the expense of maybe a smaller electric motor generator would give you the ability to get into town and back without emitting any exhaust and would give you much more regen braking capacity which is no bad thing, (in itself increasing electrical range). Maybe any aspect of increased utility dilutes the Corvette image?
There have been purely electric sports cars- the one that Musk launched beyond Mars. In comparison with the Lotus Elise on which it was based, except in straight line acceleration, the weight made it very mediocre.