I've recently been fortunate enough to find a car that has heated seats. So my vote had to go for new cars.
But to be fair, new cars have more efficient engines (more power for less fuel), better handling, better safety, better reliability, more space, more comfortable.
The only thing old cars have going for them is emotion. I'd love a 1969 Mustang. But I'd drive it standard for about a week before changing the suspension, engine, brakes, seats, steering wheel, sounds... You get the point. Not to make it a race car but to make it more accepting on the roads. Facts are facts old cars are hogs. Doesn't mean they can't be appealing though.
Even comparing the hallmarks of years gone by are beaten by the newer cars.
Brute force and ignorance always prevails.
Failure comes from too little brute force, or too little ignorance.