BMW 730L, AUDI A8 3.0T, Mercedes Benz S300, which one would you choose? Why?

I would choose the new Audi A8... You just feel like A KING inside it. The interior is just UNBELIEVABLE. You also get the all-wheel-drive system that is better for wet and slippery surfaces. The engine is also very efficient and the car combines both sportiness and comfort. You can change its suspension to comfort or sport (or normal) anytime you want