GT 4 are lighter, classic cars, and while they may not have the horsepower of the GT 5's and GT 6's, they more than make up for it in agility!
GT 4 cars only have 4 Gear dice. However, they have 3 Coast dice instead of 2, giving them a major advantage on tricky sections of track where your speed is limited.
As with GT 5, GT 4 is fully compatible with Solo Mode, and has been added to the scoring sheet.
The GT 4 expansion also includes GT 6 BoP (Balance of Performance) Dashboards, which allow you to race the 2 different categories at the same time! These new dashboards modify the GT 6 cars slightly so that they can race together on equal terms with the GT 4 cars, while retaining their unique traits.