BMW will officially exhibit the 2015 M4 Convertible at this year's New York Auto Show. Other cars on display will be the all-new X4 as well as the 4-Series Gran Coupe, X3 Facelift and the Alpina B6 Gran Coupe.2015 BMW M4 Convertible F83 will use the same drivetrain like the M4 Coupe and M3 Sedan – a 3.0 liter TwinPower Turbo Inline six-cylinder – 431HP (317 kW) at 5,500RPM and 550Nm (406 lb-ft) at 1,850RPM. The engine is mated to a 6-speed manual gearbox as standard. 0-100 km/h in 4.3 seconds and a top speed of 250 km/h (155 mph) or an optional 280 km/h (174 mph). The acceleration is even better, when fitted with the optional 7-speed ///M DCT – 4.1 seconds to 100 km/h. The fuel consumption will be probably a little bigger compared to 8.8 l / 100 km for M3 and M4.As a reminder the 2015 BMW M3 Sedan F80 is priced from $62,000 and the M4 Coupe has a base price of $64,200. The Convertible will be a little bit more expensive.Stay tuned for official information and pictures!