Gran Turismo 7 update 1.71 arrived as a free download for PS5 owners on 20 August. Sony's announcement frames it around four cars and a photo location. Polyphony Digital's own update notice describes something considerably larger: a revised physics model that touches tires, engines, suspension and driving assists, plus a game-wide recalculation of Performance Points.
The four cars are the smallest part of the update
The additions are a 1997 Toyota Chaser Tourer V and a 1997 Toyota Mark II Tourer V, both from the Used Cars dealership, plus a 2008 Caterham Seven Superlight R500 and a 2025 Hyundai IONIQ 6 N in Brand Central. Sony's guide sorts them into four flavours — street icon, sleeper pick, pure driver, next-gen performance — and suggests a starting track for each: Tokyo Expressway for the two Toyotas, a Deep Forest Raceway time trial for the Caterham, High-Speed Ring for the Hyundai.
Recalculated PP is the change most likely to break your garage
The patch notes state plainly that Performance Points values "have been recalculated for cars throughout the game," alongside revised individual vehicle parameters. PP is the number that decides which events a car may enter. A tune built to sit just under a 700PP ceiling was balanced against the old maths, and there is no guarantee it still qualifies.
Default setup values moved too — initial suspension, differential and aerodynamic settings, and in several cases the adjustment ranges around them. Anyone with saved sheets for online lobbies or licence golds should expect to re-check them rather than assume they carried over.
What actually changed under the tires
- The tire algorithm was revised for wheel-slip behaviour, road-surface and rolling resistance, and heating and wear values.
- Grip loss now behaves differently when Grip Reduction Off Track is set to Real.
- Engine torque control was refined for throttle response while drifting and for speed control under partial throttle.
- Steering geometry was re-optimised per car, and damper characteristics reworked for body movement and road tracking.
- Traction control intervention and ABS slip-ratio and cornering-brake behaviour were both adjusted.
Maximum engine RPM was also revised for a specific set of cars, including the Lexus RC F GT500 '16, the Nissan GT-R NISMO GT500 '16 and the Super Formula SF19 and SF23 entries. If you race those in a series, treat your reference lap times as stale.
Three race events, not three new circuits
Sony's post says the update introduces "three new World Circuits," which reads as three new tracks. Polyphony's headline is more precise: four new cars and three race events. They are the Japanese FR Challenge 450 at Kyoto Driving Park — Yamagiwa, the European Clubman Cup 600 at Circuit de Barcelona-Catalunya's GP layout without the chicane, and the World Touring Car 600 at Suzuka Circuit. All three run on circuits already in the game.
A genuine track addition does appear elsewhere in the notes: Circuit Experience is now available on the Barcelona-Catalunya rallycross layout. Whistler joins Scapes as a featured curation.
Wheel owners get Auto Setup, with a firmware condition
Auto Setup parameters were retuned for the Fanatec GT DD Pro, GT DD Extreme and Podium, so selecting Auto Setup from the wheel's own tuning menu now applies a Gran Turismo-optimised profile. Polyphony notes a device firmware update may be required, and that on the Podium the profile is configured for Low Torque mode only — High Torque still has to be set by hand.
FullForce feedback is now supported on the GT DD Pro, again behind a firmware update. Standard DualSense play was not left alone either: analog stick and d-pad steering response, throttle and brake input, and understeer vibration were all revised. Mechanical damage thresholds changed as well, and a new Championship damage option sits between the existing settings, applying Light-style damage from less severe collisions.
