We don't know exactly what kind of car you have: a family car, an economical commuter car, a sweet vintage ride or a modern gas-electric hybrid. But we do know one thing: You probably put a good deal of your hard-earned money into it, and keeping it running well matters to you. Sadly, though, fewer and fewer people have good old-fashioned mechanic's skills these days. In part, it's because cars have changed -- they're more fuel-efficient, create less in the way of emissions, and need major service less frequently than they used to. However, there's no denying that they're harder to work on. Some have diagnostics systems that need to be hooked up a computer, for example. Or key parts of the engine are hidden away, where they used to be much more accessible.
Still, the basic principles of the engine -- ones that were pioneered by automotive geniuses like Karl Benz (whose last name may be familiar to you) -- remain the same. Many things you learned years ago, in auto shop or from a gearhead relative, still hold true. So, is your engine savvy still intact? Or are you a little rusty? We've devised a quiz to help you find out. (By the way, don't worry if you're a truck owner and enthusiast -- you're still welcome; the word "car" in the title is a generalization). So let's get started! No coveralls needed; just sharp wits!