I've stoplight-run a bunch of cars, and most times I come out on top. I let off before they do usually, though.
My list? RSX's, three S2000's, some older vettes (gen 4 and 5, likely auto's by their shift sounds), an older M3 (two gen's ago), a WRX stock, and one modded (that was an even match, he admitted it was too close to call), a Porsche Cayenne non S, countless mustangs and camaros, from all generations, likely all stock though, so damn many civics you would not believe,...
The cars that have beaten me? Two STi's, one being a limited edition (thought it was a WRX, whoopsie), new gen Vettes, and the newest one by a few car lengths, a newer M3, an Audi S4 from two gens ago, I think, an SRT Magnum that sounded badass, a wicked SRT-4, Porsche Cayenne "S", ...there's more, but sometimes I just wasn't in the mood to play.
All in all, its a fast car, it gets people off of a rolling start REAL good, and it sucks at launching in Vegas' streets, due to the poor traction out here.
And, all rants, complaints, etc. about racing can be deposited via the "cancel" or "back" buttons on your computer screens.