Door Handle/Window Crank Position

If the car is going to be judged at a car show for points…consult the assembly manual (and put back stock armrests and door trims and dashboard and and and…).

If you are going to be driving this car and want to do something really easy to make it much safer, put the door handle so it is pointing forward, at or near the 3:00 position. That way it cannot serve as a grab handle when you're about to crash and don't have time to consider whether where your hand is grabbing is where it ought to be grabbing.