Is the Porsche 911 (991) a good investment?

The thesis

The 991 R represents Porsche's definitive statement on the purist GT3: 4.0L naturally-aspirated flat-six mated to a six-speed manual, no wing, no roll cage, just 991 units built. It's the bridge between the 997 GT3 RS 4.0 and modern GT3 Touring—and notably rarer than both. After speculative fever peaked at £870K in 2023, values have corrected to £280K–£400K, creating an entry point before the narrative of 'last manual GT3 before the 992 Touring' fully reprices it.