What is the difference between the Audi A8 Sport Package and the Executive Package?

I am considering purchasing an Audi A8, but I am unclear on the differences between the Sport Package and the Executive Package. Can someone explain to me the key features and benefits of each option?

The Sport Package adds a number of performance-focused features to the Audi A8, such as a sport-tuned suspension, larger wheels and tires, and more aggressive exterior styling. On the other hand, the Executive Package primarily focuses on luxury and convenience, adding features such as heated and ventilated front seats, rear seat heating and massaging, and a panoramic sunroof.