Boat show tickets and the London Classic Car Show

[SEARANGER ANCASTER]

Can anyone confirm whether the boat show tickets allow you to enter the classic car show for free, as going down this saturday.
I have a feeling that you can't, but thought I would ask.

I am going Sat too and then car show on Sunday. I got boat show tickets free and bought car show ones but I believe you can pay an extra £5 to get admission to car show if you have a boat show tickets and vice-versa I am told, Entry to cruise show is free with either boat show or car show tickets.