Muscle cars are high-performance vehicles built to go fast. Some of them can go from zero to 60 miles per hour in less than 10 seconds! Muscle cars usually have small, flashy bodies, but they have large V-8 engines. These cars became popular in the 1960s, when they were so affordable that many people could own them. This engaging text introduces readers to modified vehicles, and the gorgeous full-color photographs show how muscle cars are made for speed!