EKaru
Diesel Dynamiker
The 550i is an S6 competitor and in my opinion the S6 blows it away...
Audi S6 specs:
Twin Turbocharged V8
420hp & 406 lb/ft torque
curb weight: 4,177 lbs
2013 Audi S6 Debuts at Frankfurt Auto Show – News – Car and Driver
BMW 550i M-sport specs:
Twin Turbocharged V8
400hp & 450 lb/ft torque
curb weight: 4,417 lbs
BMW 5-series Review: 2011 BMW 550i Test – Car and Driver
Audi S6
BMW 550i M-sport
Audi S6 specs:
Twin Turbocharged V8
420hp & 406 lb/ft torque
curb weight: 4,177 lbs
2013 Audi S6 Debuts at Frankfurt Auto Show – News – Car and Driver
BMW 550i M-sport specs:
Twin Turbocharged V8
400hp & 450 lb/ft torque
curb weight: 4,417 lbs
BMW 5-series Review: 2011 BMW 550i Test – Car and Driver
Audi S6
BMW 550i M-sport