You can always add the Sportline suspension and wheels aftermarket -- see:

http://www.peachparts.com/sportline_suspension.htm

You will not get the smaller steering wheel and close ratio steering, however, nor will you get the front and rear Recaro seats (tho you could try to find a 2.3-16V in a junkyard if that really mattered to you).

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'98 C43 AMG
'88 420SEL
'93 190E Limited Edition (including factory Sportline package)