So here's an Imgur album with screenshots of the garages
From TeyKey1:
Gar Folder:
gar_base = Old garage
gar_geom_thumbnail = Dev debug/testing garage (blank screen, nothing selectable, see screenshot) (Very cool war drums though!)
gar_eeu_lean = Dev debug/testing garage (leads to a game crash)
gar_outdoor = Old premium garage
gar_season_02 = Arabian Nights
gar_season_03 = Moscow Calling
gar_season_04 = American Dream
gar_season_05 = Spirithaven
gar_season_06 = Apocalypse (Famine)
gar_season_07 = Apocalypse (Plague)
gar_season_08 = Exodus and the new default Garage (Waterfall)
Promo Folder:
gar_china = chinese new year garage (old-premium garage style)
gar_china_spring_festival = chinese spring festival (nearly same as gar_china with some more red colors and different texts)
gar_china_unniversary = Not quite sure what event this was (Alabino style with big screens, some gifts as well old premium garage style) [sic]
gar_holiday = Leads to a game crash
gar_holiday_02 = Halloween garage
gar_holiday_03 = Christmas
gar_holiday_04 = Unknown Russian holiday
^ (Currently as of the time of writing, all of these lead to game crashes, but that might just be a me problem
gar_holiday_05 = Five Year Anniversary Garage with presents, sparklers and screens showing your vehicle
gar_holiday_06 = Victory Day
gar_nevada is not yet implemented
Season 6-8, and Nevada is new info added by me