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 so small can leave such a large void). Another depicted the rear end of a 1954 Beetle (the year Volkswagen was established in Mexico) in the left side of the ad, reading ""Erase una vez"..." (Once upon a time...) and the last 2003 Beetle in the right side, reading ""Fin"" (The end). Other ads also had the same nostalgic tone. In 1951, Volkswagen prototyped a 1.3 L diesel engine. Volkswagen made only two of these naturally aspirated, air-cooled boxer diesel engines, and installed one engine in a Type 1 and another in a Type 2. The diesel Beetle was time