Roads between Fareham and London

[sianb]

Can anyone suggest any interesting roads between Fareham/ Portsmouth and London. The A3 is great when you need to get from A to B but something a bit more challenging would be fun.

[beano500]

A32
B3349
B3016
A323
A324
B3012
B3015
A319

Then join the M25 and park up - because you're as near to Londinium as you really want to be in a car...