Enhanced Road Rage v1.0.1

Modifications:
- 3 types of engines: 5.0 (Stock), Super Lizard(quick off the line), Insane (...need to say more)
- 2 types of tire set ups: Trailer Package (more grip for pulling), Doughnut (stock grip fun with Super Lizard)
- added a hitch so you can attach trailers
- added weight for pulling