Old Station Wagon.
This wasn't at a range. I remember an old shooting buddy telling me once about shooting a 1970's station wagon (big old car) lengthwise with a Ruger Mini 14 (.223 FMJ).
He said the back door window was down. He shot the back door - aiming straight through the car.
The bullet went through the outside back door metal, through the back window (that was down), through the inside door metal, through the back seat, through the front seat, completely destroyed the radio, through the (metal) firewall, hit the engine block and ricocheted vertically up through the hood! Who knows how much power that bullet had - even after all of that!
All that with a 5.56 NATO approved FMJ cartridge!
You ARE NOT safe inside a vehicle unless it has been bulletproofed!