The top version for the new BMW 6-Series Gran Coupe is the 650i, which is powered by a 4.4-liter V-8 engine that delivers a total of 445 HP between 5,500 and 6,000 rpm and 480 lb-ft of torque between 2,000 and 4,500 rpm. Drop down to the standard 6-Series and that top version 650i gets the same engine, but with only 400 HP. Although completely legit considering the variations between the two models, this difference in power is about to get smaller.
For the 2013 model year, BMW is working on updating the standard 650i in order to put it at same level as the 650i Gran Coupe. The model will maintain the current 4.4 liter V8 engine, but will be equipped with BMW’s Valvetronic variable valve timing system that will boost the engine’s output to match the Gran Coupe, meaning it will have a total of 445 HP and 480 lbs-ft. BMW will also be offering an automatic engine stop-start with a selectable Eco Pro driving mode that will help improve fuel economy.
Expect the new BMW 650i to be put on sale by the end of 2012.