What does 4 on a Porsche carrera mean?

The number 4 on a Porsche Carrera signifies that it is the fourth generation of the Porsche 911 Carrera sports car. The Porsche 911 Carrera is a two-door, two-plus-two high-performance sports car that has been produced by Porsche since 1963. The fourth generation of the 911 Carrera, also known as the "993", was produced from 1993 to 1998. The "4" badge indicates that this particular 911 Carrera has all-wheel drive, as opposed to the rear-wheel drive found in other 911 models.