Here's a nice run for you.
And yes it does involve eating doughnuts - at brighton pier.
Meeting at Newlands corner A25 (Dorking Road to Guildford with access from A3 and M25) National Trust land...good cafe/toilets...
Then a trundle down to Petsworth through the twisties A&B roads to Arundel castle via Petworth car park (National trust) small cafe teas/coffes/toilets , then you got Little Hampton 'Freds fish and Chip shop' and then onto Brighton pier hence the doughnut run, yum yums with the doughnuts freshly fried:lol: weather will be hit & miss. parking along the sea front.
The newlands carpark is free to park and with teas/coffee and toilets
NEWLANDS CORNER
and also the Petworth carpark is free and with teas/coffee and toilets
Newlands Corner
There are also many fantastic pubs on the way as well.