What makes the Audi R8 engine more powerful than other sports cars?

I've heard that the Audi R8 has one of the most impressive engine performances in its class. What specific features and technologies contribute to its power?

The Audi R8's engine is equipped with a powerful V10 that produces immense horsepower and torque. In addition, advanced fuel injection and a lightweight construction contribute to its overall performance.

The Audi R8 also features a race-inspired Quattro all-wheel drive system, which not only provides better traction and handling, but also allows the engine's power to be distributed more efficiently.