Andrew91

It's okay to have questions, Platinum is a big mod!
About the Triumph dealer, I moreso meant that I was unsure if it was intentional or not. I haven't checked it myself
As for the custom cars, I haven't added any yet myself but there's a bit of a tutorial in the Ultra Community Pack files, afaik it's the same for Platinum. You should be able to use any car for the slots, you'll have to replace the custom car files with the car of your choice. Then you'll have to set up the performance and wheels with TDUPE/TDUF from the mod toolkit.
And for garage space, I'm unsure. Maybe there is enough for at least all of the dealership cars and a few hidden cars.
Custom Car Tutorial.txt