the entry fee for a Club 100 sprint is £166, so if you were going to do the whole season it would work out like this:
membership (one off): £45
race entry (11 races): £166 x 11 = £1826
Total (excluding travel, hotel etc): £1871
So yes it's more expensive than say the SG Petch series but having done abit of both this year including the 24 hours (all at the sharp end of the grid too) I can say that the extra money you would spend at Club 100, if you can afford it, is worth every penny.
The kart preparation is miles better (qualifying at the last enduro saw 24 karts within 0.5 seconds of pole), the driving standard is the same as a MSA owner driver grid, there are weight limits, the engines are better and the paddock atmosphere is unmatched. I travel down from Blackpool every month to do it!
Find out more at
www.club100.co.uk