Why does the Audi R8 come with a V10 engine only?

I noticed that the Audi R8 only comes with a V10 engine and not the usual V8 or V12 options found in other supercars. Is there a specific reason for this?

The Audi R8 is primarily designed for high-performance driving, and the V10 engine allows for a power output and acceleration that meets this need. Plus, the unique 5.2 liter V10 engine is also a tribute to Audi's motorsport heritage.

While the V10 engine may seem like overkill to some, it's actually more efficient and produces less emissions compared to a V8 or V12. This is due to Audi's use of advanced technology like direct fuel injection and a dual-clutch transmission.