Your question is too broad. Which vehicle against which vehicle? The thing is today’s average driver drives an SUV or truck which is a literal tank in comparison, whereas in the 70s most people drove cars. The bumpers wouldn’t even line up (btw this is a modern issue between “cars” and “SUVs/Trucks”) leading to the bigger vehicle overtopping the smaller vehicle. Modern vehicles are also on average heavier and have better safety features. The only thing I will say is an advantage of an older vehicle is in lower speed crashes it has a better chance of being repaired then a modern vehicle that crumples, but at 70mph even solid steel will get wrecked (as will the passengers).
Also bold of you to assume a lot of these vehicles from the 70s can easily reach 70mph without shaking apart.
Your question is too broad. Which vehicle against which vehicle? The thing is today’s average driver drives an SUV or truck which is a literal tank in comparison, whereas in the 70s most people drove cars. The bumpers wouldn’t even line up (btw this is a modern issue between “cars” and “SUVs/Trucks”) leading to the bigger vehicle overtopping the smaller vehicle. Modern vehicles are also on average heavier and have better safety features. The only thing I will say is an advantage of an older vehicle is in lower speed crashes it has a better chance of being repaired then a modern vehicle that crumples, but at 70mph even solid steel will get wrecked (as will the passengers).
Also bold of you to assume a lot of these vehicles from the 70s can easily reach 70mph without shaking apart.