Oh, ok, I think I understand now.
Sure: wheels and tires first. Without that, you don't know anything.
Then begin iteration:
1. ride height
2. track width
3. front suspension
4. rear suspension
5. Go to 1.
After that, you've got (in loose order) steering linkage, drivetrain, pedal linkage, seat, a/c, exhaust, cage, floors, trunk, wheel wells, firewall, radiator, etc.
jp
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