Overbuilt and overengineered are two different things. Overbuild a car and you have mass in all the wrong places. Do it right, and you get passenger protection

Overbuilt and overengineered are two different things. Overbuild a car and you have mass in all the wrong places. Do it right, and you get passenger protection and crumple zones. The problems with over engineering are probably more subtle - you want time and money spent effectively.