Though auto manufacturers are the obvious experts in vehicle design, some people have been known to improve stock cars by adding a few interesting features. This is called custom modification, and it is an incredibly lucrative business. Custom modification has existed since cars have existed, but it’s just within the last couple of decades that business has boomed. Shows like “Pimp My Ride” made customization mainstream, and now people clamor for ingenious versions of regular cars. These can be subtle or practical additions, or the total remodeling of a standard car. You may love or hate the designs, but you won’t be able to deny the innovative practices of car modification. In this video, we'll show you some cars that have the coolest custom features. But be warned, you might be inspired to go out and buy yourself a real-life Batmobile.