Mercedes-Benz will launch the new SLK on 10th of August 2011. The new SLK will be the SLK 350 rather than the older one which was SLK 200. The Mercedes-Benz SLK will be powered by a 3.5-litre V6 petrol engine. The new SLK gets a more prominent grille with a large central star which makes it look more contemporary.