R4: Ridge Racer Type 4R4: Ridge Racer Type 4 (Ridge Racer Type 4 in Europe) is a racing video game developed and published by Namco for the PlayStation. R4: Ridge Racer Type 4 is an arcade-style racing game with a strong emphasis on powersliding around corners.
It is the fourth title in the Ridge Racer series and the last to be released for the PlayStation. It was later re-released on the PlayStation Network in 2011. It is the first Ridge Racer series game on the PlayStation to use Gouraud shading on polygons.