Most automatic transmissions operate on the principle of fluid dynamics –- that is, they use specialized transmission fluid ...

Instead of a dual-clutch transmission (DCT) with a reputation for snappy shifts, Toyota gave the GRolla a torque-converter eight-speed auto, one that it calls a DAT (Direct Automatic Transmission).

There are more types of automatic transmissions than ever before, including conventional torque-converter step-gear automatics, dual-clutch automatics (sometimes called automated manuals ...

It is. Sportomatic, which is nothing more than the time-honored Porsche 4-speed transmission connected to the engine with an automatic clutch and a torque converter, is now available on all 911s.