What is it? For those that find the V8-powered 550i Gran Turismo a bit excessive, BMW is introducing a version powered by a twin-turbocharged, six-cylinder engine.

The 535i GT is the same uniquely-shaped four-door hatchback sedan that was introduced last fall. It has a coupe-like roofline, four doors, and a dual-mode hatch covering the cargo area, allowing for a cargo area with a opening similar to a sedan trunk on a or a fully raised liftgate like a hatchback. Inside the vehicle is offered in four- and five-passenger seating configurations, and has an interior layout similar to the rest of the 5 Series line.

In the 535i GT, the twin-turbo engine will develop 300 hp, just like the 3.0-liter twin-turbo engine in the 135i and 335i. But for the first time BMW is combining turbocharging with direct-injection technology and Valvetronic engine management software that varies the timing of the intake and exhaust valves. These three features, BMW claims, makes this version turbo six-cylinder more fuel efficient than before.

What is new or notable? In addition to the changes to the engine, the 535i GT will come standard with an eight-speed automatic transmission.

When will it be available? Spring 2010.