The 1982 third-generation Audi 100 achieved a drag coefficient of 0.30 on its base model.
This figure belonged to the C3-generation Audi 100, launched in September 1982. Its exceptionally aerodynamic body was a major departure from the more upright styling of the previous generation. Flush-fitting glass, carefully shaped body panels and reduced exterior protrusions helped the car move through the air with less resistance.
A lower drag coefficient improves aerodynamic efficiency, which can reduce fuel consumption and help increase top speed at a given engine output. The C3’s 0.30 figure was especially notable for a large family car of its era and became one of the model’s defining engineering achievements.
The number applies to the base aerodynamic version, so it should not be treated as an identical specification for every engine, trim or later derivative. The third-generation Audi 100 was also sold in North America as the Audi 5000, while the related Audi 200 offered more powerful engines. The C3 generation was later followed by the C4, and the Audi 100 name was eventually replaced by Audi A6.