- The 2015 BMW M3 sedan and 2015 BMW M4 coupe will debut at the 2014 Detroit Auto Show in January and arrive in U.S. showrooms next summer.
- U.S. specifications, pricing, options and packages will be announced closer to the on-sale date.
- The M3 sedan and the M4 coupe will deliver 425 horsepower from a mostly new, twin-turbo 3.0-liter inline-6 engine.
The M3 sedan and the M4 coupe will deliver 425 horsepower from a mostly new, twin-turbo 3.0-liter inline-6 engine. The EPA has not published official fuel economy numbers for either car as of Wednesday. The V8 has been deleted from the lineup.
A new name, a new engine, a new transmission, less weight and 40 percent more torque mark the latest version of BMW's most famous sport sedan.
The cars sprint from zero to 60 mph in 3.9 seconds when equipped with the optional seven-speed M double-clutch transmission and 4.1 seconds when equipped with the standard six-speed manual transmission, BMW said.
The duo "will vigorously defend BMW's decades-strong position as segment leader around the world," said the automaker in a statement.
The car known since 1985 as the M3 now becomes an M4 when it's a two-door, in line with BMW's recent renaming of its smallest coupe as a 4 Series. The sedan retains the M3 name.
The new car is claimed to be around 25 percent more economical than the previous model, a variety of weight-saving measures complementing the improved economy of the powertrain to shave 176 pounds from the car's weight.
The most obvious weight-saving element is the standard carbon-fiber roof panel, provided for the first time on the sedan and coupe.
The hood, front fenders and much of the suspension are fashioned from weight-saving aluminum.
Aerodynamics aids have improved as well. They include a trio of gaping air intakes on the lower nose and a sizable rear diffuser.
The cabins get sport seats, a driver's footrest and an M gearshift lever.
Edmunds says: BMW M enthusiasts will be wondering whether a twin-turbo powertrain will blunt the responses of an old favorite, but there's no doubting this performance pair's style and content credentials.