Outdated Various engines and parts 1.2.1

A temporary fix for the miramar, so it works partly, just no cummins, a real fix with the cummins is on the way

added V8 with trubo to the new Pessima
added a full AWD/RWD System to the new Pessima including new rear spindles (need to fix stability of the wheels), rear suspension (need to some nodes), rear open and race diff, a driveshaft and two customizable transfercases (work with V8 and the AWD V6, may add some mod to support all engines later)
added race and sequential 6 Gear Gearboxes to the new Pessima
added a drift steering to the new Pessima (need to still fix things, so WIP)
added...

added a diesel Fuel Tank, the cummins diesel 12 valve (5.9Liter) and 24 valve (6.7Liter) to the Pickup and the Roamer

added a stage 1 supercharger and an adjustable ECU to the Miramar

some small fixes