3D model of a tractor unit.

No plugins required. The color can be easily changed.

Summary Info for Tractor_unit.max

Objects:

Name Verts Faces
------------ ----- -----
Truck_2 62339 59213
wheel_left_middle 8495 8800
wheel_left_back 8495 8800
wheel_left_front 5127 5162
wheel_right_middle 8495 8800
wheel_right_back 8495 8800
wheel_right_front 5127 5162

Mesh Totals:

Verts: 106573
Faces: 104737


Materials:

tractor_2k17 ( Multi/Sub-Object )
body_paint ( Standard )
chrome ( Standard )
frame ( Standard )
windscreen_glass ( Standard )
mudguard ( Standard )
logo_red ( Standard )
lights_glass ( Standard )
chrome_exhaust ( Standard )
\mesh_square2_f2.png
chrome_steps ( Standard )
\plate.png
turn_signal ( Standard )
\light.png
wiper ( Standard )
lights_reflector ( Standard )
dark_material ( Standard )
filter_mesh ( Standard )
\wire_alfa.png
chrome_no_raytracing ( Standard )
backlights_red ( Standard )
\light_red.png
backlights_black_ring ( Standard )
backlights_white ( Standard )
\light_white.png
cabin_interior ( Standard )
cabin_black ( Standard )
fenders ( Standard )
mirror ( Standard )
wheel_arc_grey ( Standard )

tractor_wheels ( Multi/Sub-Object )
wheel_rim_chrome ( Standard )
wheel_rubber ( Standard )
wheel_rubber_dusty ( Standard )