What are the key differences between the Audi R8 base model and the R8 Performance model?

I am looking to purchase an Audi R8 and want to understand the differences between the base model and the Performance model. Specifically, I am curious about the engine, transmission, and handling capabilities.

The Audi R8 base model comes with a V10 engine while the Performance model has a more powerful V10 plus engine. The base model also has a 7-speed S tronic automatic transmission, whereas the Performance model is equipped with a 6-speed manual transmission. In terms of handling, the base model has a standard suspension system while the Performance model has an upgraded sport suspension for improved performance on the track.