So far we have got 2 tyre bug both that has taken a few hours to find a workaround on the CM forums. 1st When exiting the pits if you use the drive out option you will put wear onto a different set of tires each time you go out in the same session even if you select the same tyre. The workaround for this is to use the Flying Lap instead, although not perfect for the likes of me who like my outlap it does solve the issue. The problem is this in race weekends tyre wear at the end of each session is being transfered from one session to another. To avoid this part of the bug all you need to do is upon returning to the pits is select a completely fresh set of tires. Hopefully both items will be sorted out by other means. Unfortunately R&D objectives have no workaround so i guess the quicker you manage to do the time the better. Not sure about online mode will update above as and when I find out. Thank you to all the PS3 guys over at CM forums for taking the time to straighten it out.