Ever wonder how much air vents cost on a Honda versus a Toyota, or how much a horn bracket weighs on a BMW? Unless you’re the most deeply obsessive car enthusiast in the world, probably not. But automakers care, and they’re always trying to figure out ways to outdo competitors—even at the tiniest level. Meet the company that tears down entire cars to help do that.

Ever wonder how much air vents cost on a Honda versus a Toyota, or how much a horn bracket weighs on a BMW? Unless you’re the most deeply obsessive car enthusiast in the world, probably not. But automakers care, and they’re always trying to figure out ways to outdo competitors—even at the tiniest level. Meet the company that tears down entire cars to help do that.