2014 Mercedes-Benz SLS AMG Black Series | Asking Price: $899,900 This is the most extreme evolution of the modern Gullwing. Powered by a hand-built 6.2L naturally aspirated V8 producing 622 hp and revving to 8,000 rpm, it was AMG’s most powerful NA engine ever at the time Only 132 examples came to the US & this one is now available on #dupontregistry