Fox - If you are driving up to Scotland head up to Stirling, then North heading for the Trossachs. From there then head through Callander and up towards Lochearnhead then up to Crianlarich and then Tyndrum. Stop at the Green Welly for fuel and then drive up through Glencoe.
The drive up through Glencoe, scenery wise, will have your jaw drop ( try and keep yer eyes on the road though!! ).
Then come back down to Tyndrum and take a right towards Oban out on the Dalmally Road. Billiard table smooth road surface with great visibility and lots of fast sweeping bends. Just mind the sheep have no fences to keep them in their fields.