BMW is in the final stages of development of its new 4-Series Coupe, which will serve as the replacement for the aging 3-Series Coupe and is just the first in a long line of upcoming 4-Series-badged cars.

We’ve already spied undisguised versions of the car, which were spotted during an official photo shoot, but this latest spy video of a prototype wearing the optional M Sport Package shows that BMW hasn’t forgotten how to engineer a potent luxury coupe.

The 4-Series Coupe is seen here carving up the Nürburgring like a proper sports car, turning in quick, progressing through corners with minimal body roll and exiting under full throttle.

The video also confirms that the car’s lines follow closely those of the stunning concept version revealed in January, though with some elements, such as the bumpers, toned down slightly for production.

The new 4-Series Coupe is expected to enter production this summer and will likely hit showrooms before the year is out. This means we can expect an official world debut at the 2013 Frankfurt Auto Show in September. A 4-Series Convertible will follow early next year.

For the U.S. market, 4-Series models will be offered with rear-wheel drive or all-wheel drive, in 428i, 428xi, 435i and 435xi designations. All 428i models will get a turbocharged 2.0-liter four-cylinder engine, rated at 240 horsepower and 255 pound-feet of torque, while 435i cars will get a turbocharged 3.0-liter in-line six rated at 300 horsepower and 300 pound-feet of torque. Transmissions will include six-speed manual or eight-speed automatic options.

High-performance M4 Coupe and M4 Convertible models are also planned, though their respective launches won’t happen until late next year. By that time, a new 4-Series Gran Coupe should also be arriving.

For more on BMW’s new 4-Series range, check out the links below:

2014 BMW 4-Series Coupe Spy Shots

2014 BMW 4-Series Convertible Spy Shots

2014 BMW 4-Series Convertible Spy Video

2014 BMW M4 Coupe Spy Shots

2014 BMW M4 Coupe Spy Video

2015 BMW 4-Series Gran Coupe Spy Shots

BMW 4-Series Coupe Concept Official Details And Video


See more videos on our YouTube sites: The Car Connection and Motor Authority.