GT7 Update 1.71: Massive Physics Overhaul and New Cars

Update 1.71 for Gran Turismo 7 is out and it brings a heavy set of underlying mechanics changes. At a glance, we get four new cars including the Caterham Seven Superlight R500 '08 and Hyundai IONIQ 6 N '25 alongside the '97 Toyota Chaser and Mark II Tourer V. There are new World Circuit events, a Whistler Scape and a Seasonal Menu added to the Café. But the real meat is the physics overhaul. Polyphony completely reworked tyre slip, rolling resistance, suspension geometry and controller inputs. The analogue stick steering tweaks mean I will likely have to rebuild muscle memory on my controller with stick extenders to catch slides properly now. With all the physics changes wiping the leaderboards across the board, the grind to re-gold every licence test starts tonight!

Here is the strict breakdown of what shipped:

Main Features Implemented

1. Cars

• Four cars added:
  • Caterham Seven Superlight R500 '08
  • Hyundai IONIQ 6 N '25
  • Toyota Chaser Tourer V '97
  • Toyota Mark II Tourer V '97

2. World Circuits

• New events added for
  • Circuit de Barcelona-Catalunya GP
  • Suzuka Circuit
  • Kyoto Driving Park - Yamagiwa.
• Circuit de Barcelona-Catalunya Rallycross Layout added to Circuit Experience.

3. GT Auto

• Engine swaps unlocked for 10 cars:
  • Mercedes-Benz 300 SEL 6.8 AMG '71
  • Mercedes-Benz SLS AMG '10
  • Caterham Seven Superlight R500 '08
  • Ford Focus RS '18
  • Gran Turismo Red Bull X2014 Junior
  • Mitsubishi Lancer Evolution IX MR GSR '06
  • Porsche 911 GT3 (996) '01
  • Suzuki Swift Sport '07
  • Toyota Chaser Tourer V '97
  • Toyota Mark II Tourer V '97

4. Café

• New conversations added for Chris, Jeremy and Stella unlocked by switching to the new cars.
• New 'Seasonal Menu' added to collect cars for extra rewards, appearing after clearing Menu Book No. 39.

5. Scapes

• 'Whistler' added as a featured Curation.

Other Improvements and Adjustments

1. Physics Simulation Model

• Tyre physics algorithm updated for slipping simulation, optimised rolling resistance and adjusted heating/wear values.
• Grip reduction off track adjusted.
• Engine torque control improved for drifting throttle and partial throttle speed.
• Suspension and steering physics adjusted for better turning forces and damper attenuation.
• Default settings for suspension, differential gears and aerodynamics fixed.
• Performance Points (PP) and individual parameters adjusted across cars.
• Maximum engine RPM adjusted for several Gr.2 and Super Formula cars.
• Gear shift-up simulation adjusted on Red Bull X2019 cars.
• Torque control adjusted for the Hyundai IONIQ 5 N '24.
• Maximum RPM of electric motors adjusted on Audi e-tron VGT.
• Fuel consumption rate adjusted for Qashqai e-Power and CR-V e:HEV.
• Forced downshifting behaviour adjusted for manual shifting assists.
• TCS intervention and ABS slip ratio control optimised.

2. Controllers

• Wireless Controllers: Adjusted analogue stick and directional pad steering, plus throttle and brake response.
• Steering Controllers: Adjusted Force Feedback torque strength, understeer vibration and pedal input characteristics.
• Fanatec GT DD Pro / GT DD Extreme / Podium: Auto Setup parameters optimised for Gran Turismo.
• Fanatec GT DD Pro: FullForce feedback effects enabled pending a device firmware update.

3. Mechanical Damage

• Collision force damage and effects on driving adjusted.
• 'Championship' mechanical damage setting added for more realistic minor collision penalties and variable recovery times.

4. Music Rally

• All event ranking boards reset.

5. World Circuits

• Target times for Circuit Experience and demonstrations adjusted with ranking boards reset.
• PP regulations adjusted for Lightweight K Cup.

6. Licence Centre

• Target times and demonstrations updated for all tests with ranking boards reset.

7. Missions

• All event ranking boards reset.

8. Penalties

• Shortcut Penalty judgement criteria toned down.

9. Display Settings

• On PS5 Pro, the latest version of PlayStation Spectral Super Resolution (PSSR) is now applied when enabled.

10. Power Pack

• PP regulations adjusted for the Bump Drafting event.

11. Localisation

• Fixed various text localisation issues.

12. Others

• Various other issues have been addressed.