R4: Ridge Racer Type 4

R4: Ridge Racer Type 4 is the fourth game in the Ridge Racer series. It contains eight tracks (with reversed variants, for a total of 16 layouts) and 321 vehicles, all of which are fictional. This version was one of the first PlayStation titles to apply Gouraud shading to polygons, giving the game a visual depth that was previously lacking. It was also the first Ridge Racer game on the system to feature a two-player split-screen mode and had two different driving models.