Drivetrainnoun
The mechanical parts of the powertrain, the gears and shafts, that connect the engine to the wheels in a vehicle.
Drivetrain
The drivetrain, also frequently spelled as drive train, or sometimes drive-train, is the group of components of a motor vehicle that deliver power to the driving wheels. This excludes the engine or motor that generates the power.
Powertrainnoun
The group of components in a vehicle that generate power and deliver it to the road surface, water, or air.