Back in the days of DOS I had this demo CD called (something like) "101 America's Best Games", and one of those games was a 3D Formula 1 racing sim.
Not since the original DOS Worms had I had so much goddamn fun playing a game the wrong way. At the start of the race, if you timed it correctly, you could accelerate into the back of the car ahead of you, and - if you were lucky - magic would happen: you could bash parts of it off.
See, back then, damage modelling was pretty much unheard of. I mean, we're talking about the early days of 3D polygonal graphics... the best you could hope for in seeing visible damage on an object was replacing its sprite with a fiery explosion. But no, this game was special. In this game, if you rammed hard enough into another car, its wheels would fall off. It was mesmerizing.
I never finished a lap in that game. Not a one. I'd just fire it up, ram into the car ahead of me and watch its wheels fall off. I'd then hound my wounded prey as it veered and wobbled around the track, careening into the sand every time I rammed it like Bumper-cars, dirt-grey polygons rolling off the track like hexagonal bottle caps. Sometimes, even my own wheels would fall off!
I used to laugh so hard at crippling an AI car and then watching it try to keep going, despite having no wheels left. Best game ever. Loved it. Wish I still had that CD, or knew the actual name of the game, because I'd love to play it again for nostalgia sake.