Driving competitively requires a racing seat that lets you stay put. Hard cornering and braking constantly try to make you slide left and right, or forward out of the seat. If you're investing energy into staying put, that's mental and physical resources you can't devote to the most important thing: winning. That's true during street driving, at least the way we sometimes drive on the street. A stock seat simply doesn't have enough lateral support to keep your butt planted or your shoulders in one place so you can make precise inputs to the steering, accelerator or brakes. R&L racing seats are optimized for "spirited" driving, and are engineered to work properly with 4- or 5-point racing harnesses instead of seatbelts and airbags. Upholstered in high quality materials these seats also happen to look amazing.