No, they are not optimized for hitting rock walls. They are optimized for keeping costs low, getting reasonable performance and gas mileage, and meeting govern

No, they are not optimized for hitting rock walls. They are optimized for keeping costs low, getting reasonable performance and gas mileage, and meeting government safety standards. A car that is optimized for hitting a rock wall would get about 1 mile per gallon and have a top speed of 1 mile per hour.