Originally Posted by
Concerto
My question of the day: is it still ok to use the 1st class upgrades if one only has the normal BahnCard, not the BahnCard 1st?
Of course it is. This is what I usually do when I cannot get a decent first class fare (or I need to be flexible in first class). I purchase second class tickets on my BC50 for second class and use upgrade vouchers to sit in first class.