Definition & Meaning of "fastback"

What is a "fastback"?

A fastback is a car with a sloping roofline that smoothly flows into the rear of the vehicle, creating a sleek, smooth appearance. The design usually makes the car look more aerodynamic, helping it move more efficiently through the air. Fastbacks often have a single, continuous curve from the front to the back, which gives them a sporty and modern look. This style is commonly seen in both performance cars and some luxury vehicles, combining both aesthetic appeal and improved performance.