He's referring to William's car dealer, although it looks great it can crash or lag peoples gmod opening it, if this is not a a thing in this script you've aced it dude, just listen to the little tweaks from people who have bought the script as most people here haven't bought it... i would if it weren't for i have a dealer already and would rather wait till a update or 2 to see how it is, still though keep me updated please as i have great interest in this script
I will say from what i've seen you might want to look into making it more customizable so each server is different