Welsh Road Trip?

Hi All -

Was planning to to the epic north scotland trip that have been eulogised on here in a couple of weeks time - but its dawned on me that (given we're in the south of england) - the getting up there and down again would be almost a day each way, so a bit too far for a long weekend....

Seem to recall folk taking about some welsh driving roads with similar enthusiasm?

Looking for a nice drive to somewhere - not overly twisty or challanging - but some nice scenery and chance to give the car a bit of a decent run of the motorway network.

Anyone got any recommendation of routes of places to stay?

Cheers guys
bergs