The Love Bug all the future scenes when Jim is braking. The second instance is on the ignition key, when Jim tries to shut down the braking Herbie. The later sequels produced, however, do promote the Volkswagen name (as sales of the Beetle were down when the sequels were produced). The VW "Wolfsburg" castle emblem on the steering wheel hub is also seen throughout the car's interior shots. Within the script, the car was only ever referred to as "Herbie", "the small car" or "the Bug"—the latter, although a common nickname for the Beetle, was not trademarked by Volkswagen at the time of
Volkswagen Beetle in Mexico and later German Beetles. In 1975, the engine cover was again changed to include four groups of vents, with six on the two inner groups and seven on the two outer groups, as on 1972 and later German models (except VW 1200). In June, the 500,000th Mexican Beetle was produced. There were two limited editions: The Volkswagen Beetle "Jeans" and the Volkswagen Beetle "Sport Jeans" featuring special wheels and unique paint colors. Beginning that year, chrome hub caps were reserved for "Volkswagen Sedan equipped", unlike the base model which had no hub caps. In 1977, the most important modification was