Tuner cars are cars that can be easily modified- or tuned. But what does that mean?! When you change something under the hood, your engine has to be tuned to work with it! This Science Garage looks at the history of “tuning,” from what started as delicate mechanical adjustments, to how it exists today- a marriage between the computer tech of of the future and the forced induction and air/fuel mixes that are as old as cars themselves.