Det er ikke atypisk for et Gran Turismo spil at der kommer så omfattende opdateringer, så forholdsvist længe efter udgivelsen. Gran Turismo 5 nød også godt af diverse opdateringer hen ad vejen, der gjorde det en del sjovere og nemmere at komme igennem spillet. F.eks. blev muligheden for midlertidigt at pause et 24 timers løb implementeret et stykke inde i Gran Turismo 5's levetid. Denne mulighed var der mange fans af Gran Turismo 5 der syntes kom for sent, eftersom de allerede havde gennemført 24 timers løbet, uden at slukke deres PlayStation 3.
Her er hvad opdateringen til Gran Turismo 6 indeholder:
Additional features in the Open Lobby
-Time Trial, Drift Trial, and Free Run have been added to the Race Type option within Room Settings of the Event Settings screen.
-It is now possible to Filter by Performance, even when Car Selection Method is set to Filter by Make or Filter by Category.
-It is now possible to select Karts in one-make races held on weather-enabled tracks.
-Players can now check regulation settings in the confirmation popup dialogue before entering a room.
-In the Race Alone mode for the Qualifier, cars other than yourself will appear as lines (as will cars other than the one in focus when only spectating).
-Multi-Monitor Settings has been added to the Start Button>Options>Display options.
-A Car Search feature has been added to the CARS section in My Home. You can specify the desired parameters to search for a particular car in the Car Dealerships.
Sale of racing gear in individual colours
-The sale of Racing Gear has been changed from full colour sets to individual colours. Some of the pricing for racing gear has changed accordingly.
Kart adjustments options expanded
-Traction Control is now available to adjust in the Driving Options. Skid Recovery Force is also now available.
-Brake Balance is now available to adjust in Machine Settings. Only the rear can be adjusted in Normal Karts, while both the front and rear can be adjusted in Shifter Karts.
-An icon that shows the login bonus stage (one to five days in succession) has been added to the top of the My Home screen and the prize-receiving dialogue.
-The increments of the Front/Rear Torque Split in Car Settings have been changed from five to one.