1. 1Confirm it's a genuine rear-drive 550-2, and cycle the soft top fully.
2. 2On E-Gear cars, have the remaining clutch life checked before buying.
3. 3Listen for a dry rattle from the timing cover on cold start; the 5.2 V10's chain tensioners are a known wear item and replacement is an engine-out job.
4. 4Confirm the 2018 ECU recall (NHTSA 18V833000) reflash was done; the earlier software could clear a stored fault at key-off and leave a warning lamp off on the next drive.

• 18V8330002011-2014
  The ECU software could erase stored trouble codes at key-off, so a warning lamp for a real engine or fuel-injection fault might not reappear on the next drive; remedy is a free software reflash.

US NHTSA campaigns for this model. A listed campaign may not apply to a particular car, and may already have been remedied — check a specific car by VIN at nhtsa.gov/recalls.