What is the X in X-mas?
A powerful car, esp one admired by teenagers: Chrysler's hot-selling Viper muscle car is $50,000/ the Sacramento Valley is ''car country,'' where blue-collar kids drive ''muscle cars'' (old Pontiacs, newish Corvettes if they're making money) and are slurred as ''the Camaro crowd''/ The undercover cops had a sporty muscle car. It was mean. It was fast. It was cool (1980s+)