Mercedes-Benz SLS AMG
Reference — shown, never scored
Why 6.0: The last fully AMG-developed car of its era: dry-sump 6.2, rear transaxle, doors that are pure showmanship bolted to a genuinely serious chassis. Half the buyers came for the doors; values now reward both halves.
Market value
Median asking price, good condition · $190k (2011) → $260k (2026), trending up · illustrative data
The long version
The gullwing novelty wore off around the same time values bottomed out in the mid-2010s, which is when the SLS quietly became a used car instead of an event car — bought by people who wanted the AMG V8 and transaxle balance and could live with doors that make every parking garage a production. Recent appreciation has not scared that buyer off; club drives and road-trip posts still outnumber static show entries. It never built the flipper mythology of its gullwing ancestor, mostly because nobody needed a reason to drive one.