Immersive Vehicles - Caterpillar Pack

PRE RELEASE NOTES:

Road Reclaimers are 100% Finished, until remodel phase.
D7, D8, and D9 Series are Functional, but Not Complete
Construction Lights Added
Large and Small Treads are now used instead of rollers
Lights now render properly, instead of behind an opaque face
Windows now face the correct direction
Vehicles are Centered on their Treads, making turning more accurate with new MTS physics
Exhaust positions are set
Engines Shouldnt overheat too quickly, but may end up overheating if driven too fast. 

Minor Remodels in preparation for the full remodel stage

New Wheel models, now capable of becoming flat