The 126 is the only Mercedes I've ever driven, so I can attest to its solidness compared to other cars. I'm especially impressed how solid the doors feel, and none of them have sagged after 20 years.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma