Porsche 911 GT3 RS 4.0
Why 5.2: The last Mezger flat-six RS, manual only, 600 built — the reference point every later GT3 RS gets measured against. Values have gone from mid-five-figure used Porsche to six-figure auction piece, and the driving stopped somewhere along that climb.
Layout
Market value
Median asking price, good condition · €166k (2011) → €478k (2026), trending up · illustrative data
The long version
Porsche built this as a proper send-off for the Mezger engine architecture, 500 horsepower and no PDK option in a car meant to be tracked, and for a few years after launch that is exactly what happened. Auction results over the past decade have rewritten the ownership pattern entirely, pulling surviving cars out of driveways and into climate-controlled collections as the car's status among enthusiasts hardened into consensus. Some owners still track theirs — the community around this specific model skews unusually committed — but a car now worth several multiples of its window sticker mostly gets trailered rather than driven to do it.