What is the top 5 fastest car manufacturers in the world?

1st Bugatti (Veyron 253mph and veyron SuperSport 267mph)

2nd SSC (SSC Ultimate Aero 255mph)

3rd Saleen (S7 Twin Turbo 248mph)

4th Koenigsegg (CCX 245mph)

5th McLaren (F1 240mph)

hope this helped