Then – The nut behind the wheel
Drum brakes, lap belts and the nut behind the wheel - that's all that used to stand between you and a sticky end back in the 1970s. Indeed, jump behind the wheel of a 70s car and the awful braking performance is probably the thing that stands out most.
In the event of an accident, however, it'll be poor structural integrity and the structure collapsing that will focus your attention. In fact, roughly three times as many people died each year in UK roads in the 1970s as today, despite dramatically higher traffic levels.
Now – Crumple zones and driver assists
Thanks to anti-lock braking tech and just much more powerful discs braking systems, braking distances achieved by modern cars are dramatically shorter than those sluggish 70s boxes. And if you do crash, crumple zones and airbags make serious injury far less likely.
But prevention is better than cure, and the really clever thing about today's cars is how good they are at avoiding accidents. Stability control systems keep cars pointing the right way, even in bad conditions, and radar and laser-powered sensor systems can automatically slam on the brakes before the driver is even aware of the hazard ahead.