Hi there, I am planning a trip from Bkk-Up-north and back during this new year holidays with my family. The route I am looking at is :- bkk-phetchabun-nan-phuchifah-chiang khong-chiang saen-chiangrai-phetchbun-bkk. My question is - Is 1155 doable by a small car? Should I just use 1020 ? Also any suggestions for Nan-Phucheefah route? would appreciate some advise. thanks.