I'd give my car some LSD but I don't think it would have any effect, where is it's tounge anyways?

Actually I'm sure the SRT6 rear diff is a posi unit, so you can probably hit up the parts dealer, or try the Mercedes parts dealer and see what the SLK offers.

I wonder how long this differential has been used for in other model vehicles? Does it go back 5 years or 10 years??? so many questions, and so little answers.