The term German car name refers to two popular car brands from Germany: Opel and AUDI. Opel is a four letter word and AUDI is also a four letter word. Opel is a subsidiary of General Motors and has been producing cars since the late 19th century. AUDI, on the other hand, is a luxury car brand owned by Volkswagen Group and has been in production since 1909. Both brands are well known for their quality and performance.