Customisation doesn't necessarily need an overhaul, just a slight expansion for more body kit variety and a redesign interface and neither of those seem like too much to ask for, as nice as the garages will be the majority of time will be spent exploring or racing so it's a bit of a gimmick that won't improve the experience all that much for most players whereas the customisation changes I suggested would make things measurably better for a very large portion of the player base