According to my experience,the original parts will be transferred to the normal parts and the total PR will get lower than it was in the event.All the uninstall components will be sold automatically .Also for the unfinished upgrade parts,the components will lose. I have to say, huracan just makes me laughing . The body looks so ugly,but it's the most expensive car in the NFS history than ever. Only 6 purple components will cost 2700 gold. ( not including some rare components).Also car level can only reach 5 even you have completed the whole events. And there also no dock, but match limits(only 3 times in a day !) . Only for 5 blue prints will cost you 400 gold. That means if you want raised the car to level 7, it will need about another 5200 gold!!!(30 bps for L6 and 35 for L7). If you can remember the snoop and the razor cars, the car level will automatically rises after you finished 1 chapter, also there is dock and lot of chances to get purple parts. And no times limits for the match. Maybe fire monkey just needs a lot more money for the Christmas. It's not NFS , I call it NFM. Lol!!!
Also I have one question, will the Huracan 's PR higher than CCX? If all these 2 cars finished the complete upgrades?