I've never spectated at Oulton Park, only raced there, but there's a long right-handed double-apex corner out the back that concentrates the mind wonderfully. I think I'd wander out there and watch the faces of the drivers as they turn in!
Sorry I missed this yesterday when it would have been helpful.
I've been going to this event for 4 years now and it's really good fun watching old saloons, F5000's etc. Paddock is completely open and very friendly. I can definitely recommend. Don't go in the main entrance, go in the entrance next to 'Old Hall' corner as you can literally park next to the start finish straight & turn one is great to watch. You can cross into the centre at Old Hall during breaks and so you aren't trapped for the day, also you can drive out and back in another entrance if you wish.
thanks - I got outvoted and we ended up at a Steam rally thing near Shrewsbury... which was surprisingly fun - the sight of about 15 vintage tractors ploughing the same field in different directions is one that sticks in the mind..