I'd make sure the SLS is still intact and working.

I'd also want only a stock car - too many kids have butchered these cars.

I'd never buy an automatic 16v.

Get one with the three center gages all working. Or be prepared to spend some bucks for good used ones.

Check the rear subframe for rust and cracks. Not that hard to fix if you are a do-it-yourself-er.

Depending on miles, may want to have that timing chain and guides done soon, if not alreay done.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport