Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (10)
| Gran Turismo | Dec 23, 1997 | Main Game | 73 | 82 | 78 |
| Gran Turismo 2 | Dec 11, 1999 | Main Game | – | 82 | 82 |
 Gran Turismo 3: A-Spec | Apr 28, 2001 | Main Game | 100 | 85 | 92 |
 Gran Turismo 4 Prologue | Dec 4, 2003 | Main Game | 70 | 40 | 55 |
 Gran Turismo HD Concept | Dec 24, 2006 | Main Game | – | 45 | 45 |
 Gran Turismo 5 Prologue | Dec 13, 2007 | Main Game | 82 | 64 | 73 |
 Gran Turismo | Oct 1, 2009 | Main Game | 72 | 70 | 71 |
 Gran Turismo 6 | Dec 5, 2013 | Main Game | 83 | 82 | 82 |
 Gran Turismo Sport | Oct 17, 2017 | Main Game | 77 | 74 | 76 |
 Gran Turismo 7 | Mar 4, 2022 | Main Game | 87 | 81 | 84 |