no im 99% sure they are all 4.6's
1 has wheels and a sticker
2 has wheels kit suspension mods side exhaust
3 has all of above with a blower
and like i said, its mainy meant for road courses and handling, just like the saleens, but they do have some quickness in the straight away. if it was a 4v, then i believe this kill story would be the opposite of what it is!