Choose between these 3 cars.

Bmw 550i 2014-16, Audi a8 2013-14 4.0t, Audi A6 cr7 with the 3.0t, or the 2012-13 Hyundai genesis with the 5.0. All of these cars are around 80k miles and 12-13k USD. Open to other suggestions if the 0-60 is under 5 seconds.