How much of the Crossfire is the same as the SLK 320? I believe the SLK 320 was around for about 4 years. I understand the engine and transmission are the same...but what other components are the same?

For the Crossfire Roadster...its only build history is 1...maybe 2 years...so I'm asking the question in reference for future parts availability.

I was told that they are suppose to keep parts around for 10 years...but does that hold for cars with a 1 year production run?

Suspension? Front end?...Rear end?
Brakes?
Air Conditioner
Steering?
ETC...

Thanks... Ben