R4: Ridge Racer Type 4 (1998 Video Game)
There is an American racing team with Dig Dug artwork on its hauler and is named the "Dig Racing Team".
A team is named RT Solvalou.
"Micro Mouse Mappy" is a racing team that can be selected from the get-go.
Druaga is one of the car brands.
A playable demo is featured on the second disc.