70s car chases were the best because the cars were giant fucking tanks with sloppy-ass suspension, they bounced and slid and flopped all over the road / through orange carts.
They also had these gigantic, loud, gas guzzling, could give a fuck about the environment, v8 engines shoving all that metal at high speeds. Although I am sure a lot of these sounds are added in post, the audio has that really visceral sound of gigantic engines pushing themselves to their limits.
Look at those adorable cops, they don't even have kevlar vests and helmets! And that's a normal car and not some hyper-aggressive mine-resistant ambush protected vehicle! What a quaint and naive time it must have been.
I came across this film late on TV one night just a few minutes before the car chase; it has that certain viscerality that a lot of heavily CGI'd car chases are missing today.