The Infernus is in fact the fastest car in GTA IV at 250km/h, with the Comet second fastest at 248km/h, but in TBoGT, the fastest car (availabe only in multiplayer) is the fastest, with a top speed of 260km/h. The Blista Compact has a top speed of 321 KPH. in addition, Where is the bullet … Continue reading What is the fastest car in GTA IV?