im going sunday, had a friend who went today and he had to wait about 1 hr for a go, but then he did go on it about lunchtime, if u get there early you may not have to wait long for a go
Ill post what I posted on codies forum;
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Just got back from gamefest, got there at about 9:15 and it was already open suprisingly so there were only about 8 people queueing for D-Box (full motion simulator) so I took the opportunity. Felt great and posted 0.6 faster than the PB
Later in the day I managed to go on the wheels twice and the gamepad once
It just feels great to drive and I found that on my last go on the wheels (at 5:50 ) I was battling with Vettel for 1st in Canada and remebered to save up KERS until the final straight, that plus the DRS got me the victory.