Belgian GP - parking??

[F1Sean]

Anyone out there know what the parking is like at Spa? In a couple of weeks, I'll be ending a week long Euro hoon with a trip to the Belgian GP. I will be leaving (close to) the Nurburgring on the Sunday morning and google maps says it's about 1.5 hours to the circuit from there. I have a ticket for yellow parking area. Anyone got any idea what time I should be getting to the circuit for/leaving Nurburg, allowing for traffic and all that good stuff? I would like to be in my seat at least 1-1.5 hours before the start (don't want to leave anything to chance given the tickets were a small fortune)
Cheers