Is the Porsche 997 a good investment?

The thesis

The 997.2 GT3 RS 4.0 is the last manual GT3 RS and features the famed Mezger flat-six engine, a design never to return in GT cars. With only 600 units globally, it commands collector respect and strong liquidity. Values have climbed steadily (mid-2024 examples trading £210k+ in the US even at 45k miles), but the car sits mid-cycle rather than early—prices have appreciated meaningfully from MSRP already. Still, as the final confluence of manual, Mezger, and RS pedigree, it has room to run.