Bugatti Veyron’s topspeed key nestles into a small slot behind the driver’s seat. And unlike the Aston Martin piece above, this one will actually give your car an insane boost and transform it into a monster. Without the key in place, your Veyron will only do 220mph. With the key in place (and the lovely glow from that red ring to indicate something seriously amazing will happen), the Veyron will do its top speed of 268mph by lowering the chassis, changing the spoiler angle, and closing the diffuser flaps.