I don't know if anybody has mentioned this before but I've always though about making a Gran Turismo-esque gamemode. The only reason I never went fully through with it was because I wouldn't know how to make a "hyper-interactive gui" and create a .cs file that receives info from gui and sends it to the physical plane (i.e. click button = load build). If anybody has found anything that could be used to make this possible or easier, the please leave a link or let me know if your already making your own "Gran Blockmo". Thank you.