Well given the fact that it weighs in at just under 1000lbs, and has a HP reading of 175, I would say it's pretty damn fast.
Most cars don't even produce 175HP, and they'll usually top out somewhere above 110MPh. Given the fact that this car is geared differently, and far more aerodynamic - I would have to estimate somewhere around 150Mph which isn't the 200 the busa pushes, but is still pretty damn fast.