I've worked on quite a few cars in the game and learned where all the different parts are in the cars. Pretty Cool game for learning about cars and what mechanics do in general. It's one of those games you play a bit here and there to learn about stuff you don't know. I've learnt where a fuel filter is in a car, oil filter, air filter, starter, where the gear mechanics of a car are, brake pads, battery, alternator. You also get to unscrew a lot of car parts to get to the parts you need to fix and replace. A lot of thinking and screwing and unscrewing lots of parts around. There is also a new free update out on Steam for the game which adds 20 odd missions. Great Game!!!!