Dual-clutch transmissions (DCTs) have become increasingly popular in modern cars, offering quick gear changes, impressive efficiency, and the convenience of an automatic without completely abandoning the mechanical principles of a manual gearbox. However, not all DCTs are created equal.
Some use dry clutches, while others rely on wet clutch packs, and the difference can have a significant impact on how a car drives, how much power its transmission can handle, and how it manages heat. Both designs have advantages and disadvantages, and automakers choose between them based on factors such as engine torque, fuel economy, packaging, and expected driving conditions.