Porsche 911 Coupe (992.1 Series) GT3 versus Porsche 718 Cayman GT4 (982). 6 points of retained value between them — ~£268 per horsepower plays ~£153 on today’s market.
Data to 16 Jun 2026
Porsche 911 Coupe (992.1 Series) GT3 · Holds value
+0%
£159,700 new → ~£135,700 today
Porsche 718 Cayman GT4 (982) · Depreciates hard
−0%
£79,965 new → ~£63,200 today
What you get for your money
911 GT3
718 Cayman GT4 (982)
£159,700
MSRP new
£79,965
503 bhp
Power
414 bhp
3.4 s
0–62 mph
4.4 s
4.0L naturally aspirated flat-6
Engine
4.0L naturally aspirated flat-6
7 speed Dualclutch Automatic
Gearbox
6-speed manual
1,526 kg
Kerb weight
1,420 kg
2022
Production year
2020
4 L
Engine size
4 L
330 bhp/t
Power-to-weight
292 bhp/t
£317
£ / bhp new
£193
~£268
£ / bhp today
~£153
Value retained · % of original MSRP
0%
911 GT3 · holds value best
Estimate from model-wide sales — no trim-specific auctions yet
0%
718 Cayman GT4 (982) · sheds value
Estimate from model-wide sales — no trim-specific auctions yet
The verdict
AI-generated from live auction data
The 718 Cayman GT4 is the better buy today, and it isn't particularly close. At roughly £153 per horsepower on the used market — against the GT3's £268 — you are getting a genuinely exceptional driver's car at a price that makes the 911 look almost embarrassing. Both share the same 4.0-litre naturally aspirated flat-six and both are built around the same Porsche obsession with balance and precision. The difference is that one costs nearly twice as much for a car that, in honest day-to-day driving, will rarely feel twice as good.
The GT3 is quicker, sharper, and carries a badge that commands a premium no spreadsheet can fully justify. Its PDK gearbox is devastatingly fast, and 503 bhp through a rear-engine chassis remains a serious achievement. But the GT4 has something the GT3 quietly surrenders: a six-speed manual and a mid-engine layout that makes every corner feel like a collaborative exercise between driver and machine rather than a feat of engineering management. For the kind of driving most people actually do — B-roads, trackdays, occasional motorway — the GT4 delivers 90% of the GT3 experience at well under half the price. Worth noting: depreciation figures for both cars come from very limited model-wide data with no trim-specific auctions, so treat any retained-value claims with appropriate scepticism.
Buy the GT3 if status and outright pace are your currency. Buy the GT4 if the drive itself is the point.
“718 Cayman GT4 (982) is the better night out. 911 GT3is the better decision.”