premium pass would be better, quite a few exclusions on this cheaper version Its £75 but you get free parking and no restrictions (apart from firght night you get 6 selected days free) and a free digipass so unlimited photos , considering parking is £10 pop its worth the extra, they will probably have offers in it at some stage https://www.thorpepark.com/tickets-passes/day-passes
No. That's only during August. The OP has not spaced it correctly above, I believe it should read "not Valid on Fridays/Saturdays/Sundays during August only".
Only valid for Monday-Thursday?
Nope! That'll be an extra fee. See section 12.6 below.
Does this include parking or is that extra?