The Ultima GTR just set a world record for 1-100 MPH then back to 0 in only 9.2 seconds. This is supposedly a fully legal streetcar (at least in the UK).
Check out the video...
0-100mph-0 comparison times
Ultima GTR
9.4secs
Ferrari Enzo
10.9secs
McLaren F1 LM
11.5secs
Porsche...