Rideout Customs is named on the Ultimate list for detailed interiors, rims, and donk styling. It is the in-town counterpart of the off-road workshop by the lake.
The official text: 'Transform vanilla vehicles into magnificent works of art with detailed interiors, exquisite rims, and donk stylings. Only open for business with the Ultimate Edition.' Donk is the Southern US style of lifted classic sedans on oversized rims. Rockstar has not said where the shop is.