The short answer

Front-wheel drive powers the front wheels. Rear-wheel drive powers the rear wheels. All-wheel drive can power both axles. These names do not tell you which tires provide braking.

Follow the power to an axle

An axle is the line or assembly associated with a pair of wheels. Front-wheel drive, often shortened to FWD, sends propulsion to the front pair. Rear-wheel drive, or RWD, sends it to the rear pair. In a typical car, the front wheels steer regardless of which wheels propel it.

All-wheel drive, or AWD, can deliver propulsion at both the front and rear. Some systems do this continuously. Others engage an additional axle when their controls decide it is useful. Designs differ, so AWD is a broad description rather than one mechanism.

Sources: Subaru of America ↗

Front-wheel, rear-wheel, or all-wheel drive? — simplified labeled mechanism diagram.
Original diagram · simplified, not to scale. About our diagrams

Grip still begins at the tires

Sending power to more wheels can help a vehicle use the available tire grip while accelerating. It does not remove the tires’ limits. Tire type, condition, temperature, and the road surface still matter.

Drive-layout labels describe propulsion. They are not a promise of shorter emergency stops. Choose suitable tires and keep them correctly inflated rather than relying on an AWD badge as a general safety guarantee.

Sources: National Highway Traffic Safety Administration ↗ · Subaru of America ↗

What this means when buying

Think about your actual routes and weather. Ask whether AWD solves a need you have, and compare fuel use, servicing, and tire requirements for the specific versions. Ask the manufacturer or a qualified workshop about permitted differences in tire size and wear.

For a used car, confirm the exact drive configuration from its manufacturer records. An optional AWD version and a two-wheel-drive version can share the same model name. Have the inspection cover the installed drivetrain.

Common misunderstandings

AWD does not mean every wheel always gets an equal share of power. The distribution depends on the design and current conditions.

Four-wheel drive, often written 4WD, is not a standardized guarantee of a particular low-range gearbox or off-road ability. Check the actual system and its operating instructions.

Sources: Subaru of America ↗

WORDS YOU NOW KNOW
Front-wheel drive (FWD) Rear-wheel drive (RWD) All-wheel drive (AWD) Traction

Sources & review

Reviewed . Original educational explanation, checked against the sources below. This is general guidance; consult the documents for the exact vehicle, year, configuration, and market.

  1. What is All-Wheel Drive (AWD)?Subaru of America · How does AWD Work? · Accessed 2026-10-22.
  2. Tire Safety Ratings and Awareness · TireWiseNational Highway Traffic Safety Administration · Tire Maintenance; Tire Pressure; Aging · Accessed 2026-10-22.
Editorial policy & corrections →
KEEP CONNECTING THE DOTS

What comes next?

The four systems that keep you in controlWhy a car needs a transmissionWhat to notice on a test drive