I'd stay away from the 80s, and the latter half of the 70s. Not Detroit's best years. If you can afford a new car, you can afford any babied car from the 60's. Not only will you not have to worry about being hacked, or your computer choking, but you will look cool-as-fuck driving it. You'll have a car that can be picked out in a parking-lot, because it won't look like every other car there. Get one with bench seats - you'll have room for love-making. Don't forget, these cars we think of as hot rods today were the family cars of the 60s. Our family car, when I was a kid, was a '67 Impala. Nobody thought it was anything special then, but when you compare it to today's cars, it looks like a work of art.
You're worried about safety? Don't. We jammed the seat belts under the seats, and forgot about them. We did just fine without all that "safety" junk. Simply having a fine car will make you, and everyone around you, better drivers. Everyone respects a beautiful car from the sixties, and they'll respect you for having the good taste to own one. Crank the windows down, light a Lucky, put on your shades, crack a beer, and feel the power of an eight-cylinder, carbureted, Detroit engine under your feet!
Sorry, got a little carried away... But yeah, anything made before 1974!