Also, i'm pretty sure the Tesla IS the only $100k luxury sedan with that performance right now. Very few pure sports cars make it under 3s.
The Tesla can provide smooth acceleration from 0 to 60. No combustion engine can accomplish that feat... although some hybrid supercars are beginning to incorporate electric motors for that reason.
It's not? At these rates higher acceleration is more than exponentially harder to achieve, that is the closer to zero you get. Someone should link a nice graph.
http://www.zeroto60times.com/2-second-cars-0-60-mph-times/
The Tesla is the only sedan on the list. The majority of the cars are mid/rear engine super cars or track-day cars that you wouldn't care to drive every day. Any way you slice it, this is remarkable company.