300mph seemed like an easy target for previous episodes of Gran Turismo because the cars had dramatically more power, and also in some cases Nitrous. But in GT5, there's no NOS and an average power loss across the entire range of around 50bhp, and even more in some cases. The Toyota Supra RZ now only has 725bhp, where previously it could have over 800bhp. Anyway, I digress,,, This is a run in a draft racing room of my 1025bhp Mercedes Benz SL600 (R230). With which I managed a drafted top speed of 309mph.
Gran, Turismo, 300mph