In 2011, Porsche unveiled the greatest engineering leap in the history of its evergreen sports car. Internal code 991, the seventh gen 911 wore a completely new chassis with modified wheelbase, greater track width and beefier tyres. Hybrid construction using both aluminium and steel meant lower weight for better performance and economy. The 991 was also the first generation of 911 to feature the new seven-speed manual gearbox and Porsche Dynamic Chassis Control. #Porsche #911 #991 #new911 911 Carrera S: Combined in l/100 km (mpg) 8.7 (32.5)-7.7 (36.7); CO2 emissions in g/km 199-174.