Since the older slk is the frame on which this car is built on and we all know that our engines are MB, it would have been nice if they used the new slk 350 motor in the 2007 crossfire. I don't remember the numbers but I believe the engine is a 3.5 liter V-6 and it produces 270 hp and 260 torque. That would have added a little more power to the crossfire before it gets it farewell. But I can also understand not wasting the money on changing the engine for the last year of production.