We tried the Top Gear Top Road, but the pass at the top was still closed by snow so had to abort and was just too far round to tackle it from the other end (next time!).
You must watch Caravanning Romania Style on Youtube (intrepidfor10minutes) its only 30 seconds but is a hoot.
While Chris went to Dracula Castle with some other brits I took the opportunity to escape on the bike and did a 25 mile ride to a local Gorge accessible on foot/bike only and managed to get up to the top of the gorge (1100m) before expiring and carrering the 8 miles back down again - fantastic.
Chris and I also cycled to Rasnov, a Medievel Town on the top of a hill, 18 miles!!
After leaving Bran we went to the mud volcanoes, in the middle of knowhere, with no camp site for miles, but the car park attendant at the Volcano let us stay there overnight for the cost of the car park ticket (42p).