BMW's and Porsche's extremely opposing yet powerful 6cyl high performance engine technologies in an accidental meeting on a German Autobahn.
Head to Head:
BMW M135i (Automatic): 2979 cc R6 turbo (N55B30)
Weight: 1515 kg / 3340 lb
Max output: 235 kW / 316 bhp
Weight to Power ratio: 10.76 lb/bhp
Max torque: 450 Nm
Sprint 0-62mph: 4.9 s
Top speed: 155 mph (limited)
Porsche 911 Carrera S (997/2) 6cyl flat engine
Weight: 1480 kg / 3263 lb
Max output: 283 kW / 380 bhp
Weight to Power ratio: 8.72 lb/bhp
Max torque: 420 Nm
Sprint 0-62 mph: 4.7 s
Top speed: 188 mph