No you muppet, he means are you intending to ride in by bike or drive in with your bike in the car. There is no vehicle access from the north but plenty of rideable tracks.
I know, i'm doing a ride on sunday from near hay on why, which is north ish / north east of afan, so thought of going to afan on saturday, and I want to just stay in the one place as a base , somewhere that if not cycleable to both, not too long a car journey. Ideally cycleable to afan and a car journey to hay on the sunday but not too long a car journey which going all the way round the arse end of the mountain from glyncorrwg would be.