I assumed since I was done with the story and wouldn't be doing the missions, which I thought were causing vehicle poofs, that I could start filling up the big garages with custom cars. NOPE. 5 cars, a whole bunch of customization, and a quick save/load later I'm back to just a stock Adder.
Anyway, R* said something about using the Social Club garage to back up your vehicles... all these news outlets quote R* while none of them, including the support page on the R* website itself, tell you what it is or how to use it, at least from what I saw. So how do you use it? Is it the just iFruit app or what?