What distinguishes a transaxle from a standard transmission?

A transaxle is distinct from a standard transmission primarily because it incorporates the final drive assembly into the transmission itself. This integration allows a transaxle to perform multiple functions: it transmits power from the engine to the wheels while also containing the mechanisms for differential action, which is essential for allowing wheels to rotate at different speeds during turns. In contrast, a standard transmission and its differential are usually separate components.

The inclusion of the final drive assembly within the transaxle is especially advantageous in front-wheel-drive vehicles, where space and weight are significant concerns. This design simplifies the drivetrain layout and optimizes packaging within the vehicle.

While other factors like gear ratios or overall size can vary between different types of transmissions, they do not fundamentally define the structural and functional differences that equip a transaxle for its specific role in automotive applications.