Car Mechanic Simulator

Go to Barns and buy every body part you can find (except rims, windows and lights). Also buy the cars for other achievements you can combine with (Sell 25 Cars, Fix 100 Old Cars, etc.). Remove all remaining body parts from the cars and repair them on your workbench. You can either do a full restoration of the cars or sell the body parts only. The same Method can be done with the Junkyard, but I prefer the Barns.