Hmmmm at this point a bit of rationality is called for, skid marks do take up processing power, and memory, they need to be layed on the track when a certain grip (or lack of it) is reached by the tires, the position is then put in memory....ok now lets times that by the 4 tires on the car and then by the 16 cars on the track! ok what about online races, all this info then needs to be transfared in real time between every person in the game along with all the other info! Now there is a limit to what the PS3 can actualy do (I know thats hard to beleive) and so PD has to make compromises.......WTF PD compramiseing? yeah I expect that same statement is cried out loud in the PD offices daily LOL So PD have the dubious task of decideing whats needed and whats not, you want skid marks then something has to go to make room for it, lower car polygon count or maybe 15 cars instead of 16? PD are pushing the PS3 to it's limits with the current development tools (later tools will unlock more power from the PS3 which will be seen in GT6.....) GT5p however is a testbed for GT5 and no doubt feedback from the GT5p community on the game willinvoke such changes such as skidmarks if enough people want it, same with car damage, weather effects and custom body parts