What Differentiates the Audi R8 from the RS models?

I am interested in purchasing an Audi sports car and I am unsure of the differences between the R8 and the RS models. Can someone provide me with some insight?

The main difference between the R8 and RS models lies in their engines. The R8 features a V10 engine while the RS models have a twin-turbo V8. This difference results in a noticeable distinction in power, with the R8 producing more horsepower and torque.

Another difference is the design and exterior styling. The R8 has a more aggressive and sleek appearance with its sharp lines and angular headlights, while the RS models have a more subtle and classic design.