Like the BMW 640i convertible, the Coupe comes with BMW's 3.0-litre TwinPower turbocharged six-cylinder engine producing 235kW of power and 450Nm of torque. Despite the somewhat misleading '40i' badge, the 3.0-litre unit provides enough force to hurl the Coupe from 0-100km/h in just 5.4 seconds.
Joining the new Coupe range is the flagship BMW 650i. Again, like the convertible version, the 650i comes with a 4.4-litre TwinPower turbo V8 engine producing 300kW of power and 600Nm of torque. BMW says it will do the 0-100km/h sprint in 4.9 seconds - almost as quick as the previous-generation BMW M6 (4.6 seconds).
Both versions of the new Coupe will come with an eight-speed Steptronic automatic transmission with EfficientDynamics technologies. Features include brake energy regeneration, electric power steering and High Precision Injection, all to keep fuel consumption to a minimum. For the 640i, average fuel consumption is rated at 7.8L/100km, and 10.6L/100km for the 650i.
Both versions also boast a 50:50 weight distribution for optimum handling balance, and a rear-wheel drive layout with double wishbone front suspension.
Inside, the new 6 Series Coupe offers a 460-litre boot capacity and increased passenger room compared with its predecessor. Both also come with head-up display, internet connectivity and Professional Navigation with Voice Recognition.
The new BMW 6 Series Coupes will be available from December, with pricing kicking off at $178,300 for the 640i, and $232,300 for the 650i (prices exclude on-road costs and government and dealer charges).