according to a horsepower to weight calculator i found.
http://www.tunercalcs.com/
it said a 2222lb car can do the quarter in 11 seconds. with 290 hp. so i doubt 5 seconds 0-100 mph. 0-100 kph maybe. the lotus elise is 2000 lbs and has 200 hp. that sounds like a damn fast miata, but i would want a test drive first to make sure his boost aint detonating anything.. not enough fuel at full boost and blamo. Also to make sure he is not blowing soot up your tailpipe. Conversely, according to this calculator: a 10k lb truck with a 1k hp can do 12s. The only thing i know that can do 0-100 mph in 5 seconds is a FORMULA 1 car. they are scary fast. this car might be street legal, might not be.. i would want to see for myself, why not enter it in the USCC at Sport Compact Car.. Ultimate Street Car Challenge, dyno, road course, drag race.. all that. drifting.. why not enter it in and see how she flies.. If hes telling the truth, then he stands a good chance.. if not, he is toast.. Some damn fast cars do that event.