What does 8 stand for in Audi R8?

In the Audi R8, the "8" refers to its original engine configuration, which is a V8. The model was later offered with a V10 engine as well, but the designation "R8" has persisted. The number is indicative of the performance and engineering Excellence associated with Audi's high-performance sports cars. Overall, the R8 represents a blend of luxury and racing pedigree within the Audi lineup.