Some of the faster cars can get a derby kit in customization options that can add like side panels, and stronger bumpers, and roll bars. This will affect the vehicle’s speed negatively, but will help for combat in derby. This will Probably cost a bit more than the plows for most vehicles. It can only be added to tier 1 vehicles that are lacking defense or attack . I was thinking it would be a good option as a way too spend extra scraps and credits on cars.
For example the Cadillac Seville can get more attack by adding this because right now it is very bad in derby.
Overall It can be a costly alternative to make cars better for derby mode.
It could make normal cars look more like this.