Answer:
Koenigsegg Agera R. (Fastest transportation car not used for drag racing) If you do want a drag racer by any chance though, it would be the Lagana clocking a speed of 338 MPH
Explanation:
The Koenigsegg Agera R is a fairly new car from what I've heard and only took the Bugatti Veyron by a few mph clocking a speed at 260 MPH.
