What is the difference between the Audi R8 V8 and the V10 engine?

I want to know the specific differences between the Audi R8 V8 and V10 engines, including performance, design, and any other notable features.

The Audi R8 V10 engine has a larger displacement and more horsepower than the V8 engine, resulting in significantly faster acceleration.

In terms of design, the V8 engine has a distinctive red engine cover, while the V10 has a titanium grey cover.

Both engines have a similar fuel efficiency, but the V10 has a more aggressive exhaust sound due to its firing order.