Draw parts one by one, use Kilinich's gradient texterures and place it with "texture tool" ¯\_(ツ)_/¯
Use my FZR400's body as tutorial Also you may use parts of it in your bike(f.e. tires, grip, clip-on, brake discs)
Use GT Pack, borders don't look good. Just make different gradients on parts, rotate and rescale it. I see you can draw, you only need to make volume effect
Most of your cars and bikes are same: a little bit overpovered "light" spawn engine, simple sequental gearbox with wrong gears ratio, simple clutch, simple suspension. Also you use only one track for any vehicle - sport car, bike or offroad ¯\_(ツ)_/¯
Try planes, helicopters, scripted spring engines, new tracks, make realistic air friction(10 or more), ABS and TCS
Engine can't be realistic if it powered by bowling balls ( ͡° ͜ʖ ͡°) Anyway your engine is hided by car's body, collision or spawn engine - doesn't matter.
No, 8/10 because car's body has a lot of slots and wrong colors behind wheels
I'll rate 10 if you make 1st up to 100 km/h, 2nd 160, 3rd 220, 4th 265, 5th 310, 6th 350.
"Spawn engines can't be stable if so light and powerful"
My contest engine:
500 hp, 80 kg and perfect stability But it powered by IKEA's cupboards You'll see after 8th of November
Em... Just try TotImp3(2) It's axle's torsion load. I'm making 8x8 truck like MAZ 537 with torque converter(CVT 270% + bendConstant³) and 3 gears gearbox
Use it for motorTorque on axle on other circle with additional bendConstant(or anything else to slow it down). Angvel on this circle changes diameters in CVT by scene.my variable. Sorry for my poor English, I hope you understand that it'll make smooth and limited transmission ratio