1. Automatic Transmission – Oldsmobile

Oldsmobile was dedicated to the introduction of new technologies in GM’s nomenclature. And automatic gearboxes were one of their greatest hits. They introduced them on their 1939 models. However, the Hydra-Matic automatic was slow, complicated and heavy. But, it revolutionized the industry. Today, almost half the cars they offer each year has an automatic transmission, thanks to those innovative Oldsmobile engineers.