Non-stop race in hell

what happens

Amasso and Ikima, who were imprisoned for treason, escape from prison to ask for forgiveness by defeating Jeeg. They planted a bomb in Hiroshi's car that participated in the race, disguised as Don and Pancho and rampaged with Mechadon. The bomb will explode if the car fall below 80 km/h, so it must removed while driving. Even the robot beast and the hijacked Mechadon appeared...