If you prefer luxury and discretion, the Audi A8 might interest you. However, you will need good financial resources because the A8 sedan with aluminium body is not cheap… With a Quattro all-wheel drive system and its 350 horsepower V8 engine, it offers a good balance between performance and handling. With the imminent arrival of a new model in 2010, the W12 engine and S8 versions have been discontinued.