Who wants to guess if any of these $50,000 new cars today will still run over 100 years from now, ha ha ha
All that plastic-rubber for bumpers and lower panels will be falling apart 50 years from now, let alone 100 years. Then you got the electronics and cheap wiring.
Aluminum doesn't rust but it does corrode and falls apart--it turns a whitest color and flakes apart. Most engines today have aluminum heads and other parts.
Those engines from the 1960's are still kicking butt at the drag strips--they been rebuilt sure but most have 40-50 year old blocks and cylinder heads