2013 Audi S6 vs. 2013 BMW M5, 2012 Mercedes-Benz E63 AMG

"Geschwindigkeitsbegrenzungen are speed limits, and Germany is famous for not having any. Actually, speed limits are everywhere there, as are speed cameras and Polizei to enforce them. There are stretches of the A8 autobahn from Munich to Stuttgart where the posted limit changes three times over the course of a mile. One reason: Germans have a fanatic obsession with good roads, so there are more construction and maintenance workers in Germany than there are practicing Catholics.

For this reason, and also the cameras, and also because they just follow rules, Germans heed their speed limits. What they demand in exchange for all this rampant civil obedience are luxury sedans capable of effortless triple-digit cruising in the de-restricted zones, and incredible last-second braking for the 80-km/h signs or the occasional wandering, Serbian-registered RV. This habitat breeds the best sedans in the world, and we’ve come here to declare one the most well-rounded, the ultimate, the ne plus ultra."

Car and Driver: 2013 Audi S6 vs 2013 BMW M5 - 2012 Mercedes Benz E63 AMG