The SLK roadster is scheduled to be released on the first half of 2011 after getting additional cargo space, shedding of some weight, and most likely getting a new engine.

The next SLK drops about 200 pounds in weight and increases its trunk capacity to 11.2 cubic feet. These new features will be well received for owners who frequent the golf course or those who needs some additional space when they go on a road trip. Basing on the SLK seen on the road though, auto spies have reported a shorter and lower SLK seen on the roads of Germany.

The new SLK may get a new engine after its official debut since a V6 3.0L that is capable of giving out 300 to 350 horsepower is still in the works. The car manufacturer will stick with the old engine until they get the revolutionary replacement.

The new spy shots of the new SLK, although still under heavy camouflage, reveal that the nose of the car does not have that Formula 1 look. The side mirrors also moved down the sides of the door instead of being adjusted on the A pillar. It looks like that it is giving some cues of becoming a big SL from behind.

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The new SLK is 200 pounds lighter and gets a bigger 11.2 cubic feet of trunk space. Car enthusiasts love the additional cargo space which makes the roadster more functional for everyday use or a weekend round of golf.

According to some rumors, the Mercedes-Benz SLK is also getting a new power plant variant that is capable of a 300 to 350hp output. There might also be a V8 version with 3.6L displacement and capable of injecting 470hp for the AMG variant.

Some industry experts are also tipping that the 2011 SLK might adopt the 2.2L diesel engine currently being used by the C250 CDI. This engine has 204hp but some are doubtful that the American market can appreciate the boost that it can give to the car. Diesels engines for the C-Class and the GLK build might be okay but it might not be appreciated for a sporty SLK; however it will do good for fuel economy.

Although the new SLK has been spotted several times, the dimensions are not that clear because of the fitted camouflage. It seems the 2011 SLK will have a longer hood, retain the LED day lights, and will have a refined design of the side mirror linked to the doors. The lines of the roof also have some semblance with the SLS AMG.

The sticker price for the 2011 Mercedes Benz SLK may not be too far from the current variant’s $46,000.