We had a couple of Teslars competing at Crystal Palace last year and it was weird watching them leaving tyre marks off the line, with the only noise being the chirp off the tyres.
Performance was quite impressive, and the quickest one set a 38.5s.
To compare the 240Z ran 48.06 and the Escorts (heavily modified) were around the 39s mark
The only thing was that they were recharging between runs....(and using a Petrol generator
)
This of course brings up the argument regarding Electric not being cleaner if you have to burn Oil/coal to generate in the first place.
If they can get the performance and a decent range between charges then things could become interesting and if the MSA can sort out the nightmare of class structures we could start to see races for them.