The Audi TT RS isn’t the sharpest car in its class to drive, but few similar-priced sports cars can match its outright pace and beautifully constructed interior. The Porsche 718 Boxster and 718 Cayman have a better chassis set-up, but their coarse four-cylinder engines sound poor next to the TT RS's wonderful five-pot motor. Those looking for the purest driving experience for this money should try the sweet-handling Alpine A110 instead.