- Fullscreen mode. Yes it's necessary, maybe not for everyone, but it is. At least why should it not be there? Does it ruin the game? LET ME USE IT.
- Ability to use different color materials for RIMS. Matte, metallic, gloss, etc. Also make it possible to color different parts of rims with different colors (Spokes / outer lip / barrel)
- More brand stickers in vinyl creator would be nice
- Ray-tracing (could really give visuals a flavor)

Feel free and add your suggestions too.