In the US I have a few...
1. Angeles Crest Highway
2. Highway 67 from Jacob Lake, Arizona to the North Rim of the Grand Canyon
3. Highway 550 between Durango and Ouray, Colorado
4. Highway 9 through Zion National Park, Utah
5. G16 between Greenfield and Carmel, California
6. Any paved road in Death Valley, Big Bend, and Arches National Parks
7. Highway 64 between Tres Piedras and Chama, New Mexico
I'll stop there...
2010 E93 M3 - SOLD
2013 F10 M5 - SOLD