Cayennes equipped with the Sport Chrono option have this button on the right spoke of the steering wheel. This dial lets you choose between four driving modes (Normal, Sport, Sport + and Individual) and in the middle there’s another, harmless-looking black button. Word to the wise: it activates Sport Response, like on the new 911. Want to leave a slowpoke in the dust? Sport Response sends 20 seconds of overboost to the turbos. It also immediately shifts the gearbox into the ideal gear and the accelerator becomes more sensitive. A countdown then appears in front of the driver, who then has 20 seconds to pass - and that’s more than enough time.