Keep in mind if you go for the magna ride option with the performance pack on the 18s you get what feels like a COMPLETELY different car. the change in side for each mode with the magnetic dampeners is not slight. It goes from super smooth to feeling the date on a dime in track mode, which is a good thing.
From everything i have looked at on the net, finding videos that talk about the magna ride are very few and far between. It is the suspension from the GT350 which is different in most aspects, its not just the dampeners, there are a number of different components.
2018 Ruby Red GT PP with all the goodies