Car tuning in garage/storage (just like in NFSU2)

[scaftz]

Don't really have problem with money drain in this game since like ever, once i changed bodykit 5 times in a day. And with the shopping cart feature on the other thread this will not be a problem anymore. But performance upgrades already works this way so i don't see why it shouldn't be as well. Installing owned parts should remain accessible on respective shops, following current's performance upgrades system which will make scripting easier and thus promotes freerun travelling to make the server looks more alive.