great article im not a fan of the M6 but i am a huge fan of the alps and mountain roads...i htink any of them would do for me, but i know from experience route napoleon is very nice...the high alpine passes would be alot of fun in any car i think since you cant build up enormous speeds anyway. Also that Umbrail pass would be nice if you have a car that feels a bit at home on loose surfaces...ill remember that1