Over the last 15-plus years I’ve had the pleasure of owning and restoring a variety of S52 M Roadsters. Some have had as little as 3,000 miles and needed nothing more than diagnosing and fixing a faulty seat harness. Others have required a very lengthy and comprehensive overhaul to address a leaking transmission and differential, dry hoses, frozen brake pistons, loose seat rails, rattling glove box, etc.