This is the hybrid version of the New Jaguar C-X75 Electric-Turbine Concept.
How about 502 hp from a turbocharged/supercharged 1.6 liters. Add the batts for over 800 hp @ 10,300 rpm
[media]http://www.youtube.com/watch?v=v0CjIVKM1z0&feature=player_detailpage[/media]