MUSCLE CAR

Muscle car is a term used to refer to a variety of high performance automobiles.At its most widely accepted the term refers to American 2-door rear wheel drive mid-size cars of the late 1960s and early 1970s equipped with large, powerful V8s and sold at an affordable price for street use and drag racing, formally and informally.
As such, they are distinct from two-seat sports cars and expensive 2+2 GTs intended for high-speed touring and road racing.
Building on the American phenomenon and developing simultaneously in their own markets, muscle cars also emerged in their own fashions in Australia, South Africa, the UK and elsewhere.

4x4

Four-wheel drive, 4WD, 4x4 ("four by four"), or AWD ("all wheel drive") is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously. While many people associate the term with off-road vehicles, powering all four wheels provides better control in normal road cars on many surfaces, and is an important part of rally racing.

In abbreviations such as 4x4, the first figure is the number of wheels; the second is the number of powered wheels. 4x2 means a four-wheel vehicle in which engine power is transmitted to only two wheels: the front two in front-wheel drive or the rear two in rear-wheel drive.

There is often confusion as to the difference between 4x4s and SUVs. This leads to criticisms of 4x4 vehicles in the media that should actually be directed at SUVs (see SUV Criticism).