Opps, I did not notice that, but the exterior is like normal
one, I dont remeber seeing any ads (Except 211/212, with the LG
window ad, and I have taken a pic on that -- know what that means
......)
Just to share a pic on the EB DNB on TNM (BTW, it was so fast
that I cant record a video on that, and I failed to take a proper
pic with train car number)

Based on this pic, can / how would any train forumers point out
this is a C751B and not C151 train?
wait wait, what time u took this picture?