Why do all cars look similar/same/cloned now?

There used to be laws against that. A very creative friend back in the old country "lifted" his F250 4x4, WAAYYYUP lifted. Local constable pulls him over, first thing he did was take the tape measure to the front of the truck and measure the height of the headlights. Out came the ticket book. He drove the beast to Las Vegas and was cruising the Strip, Cook County Sheriff Deputy pulls him over, "I don't know what this is, I don't want to know what this is, but get it out of my county right now and never bring it back!" That was in the middle 70s when law enforcement actually enforced traffic laws.

That scene from American Graffiti comes to mind.
But the problem was too low.
Don't know why though.