I’m so on board with the imposter theory. When you think about it, Red has never properly introduced himself to Liz… because in doing so he would’ve been directly lying to her (about who he is)? He seems cool with it when it’s perpetrated against Zoe 😍😂 Btw about the family driver post, I think both cars in the second pic are police cars.
You’re absolutely right about Red never telling Liz he IS Raymond Reddington. I have that in my imposter theory as well. The only thing Liz has DIRECTLY asked him is if he is her father. Even in Gregory Devry, which is an entire episode about Red not really being Raymond Reddingon, Liz never directly asks him if he is really Raymond Reddington. So if she doesn’t ask, he doesn’t have to tell her. Hence, NOT lying. ;-)
As for the photo you’re referring to, there are two police cars in that photo, but I was referring to the black town car over to the left. It’s the same town car that we see two other times in the episode.