Kammback

A Kammback, also known as a Kamm tail or K-tail, is an wherein the rear of the car slopes downwards before being abruptly cut off with a vertical or near-vertical surface. A Kammback reduces aerodynamic drag, thus improving efficiency and reducing fuel consumption, while maintaining a practical shape for a vehicle.

The Kammback is named after German aerodynamicistWunibald Kamm for his work developing the design in the 1930s.

Some vehicles incorporate the kammback design based on aerodynamic principles, while some use a cut-off tail as a design or marketing feature.