The Mutant Blue RX-8 is in the first sequence of the new X-Men 2 trailer. At least this time it is "slightly" longer than 1 second. And, at least it is included in this trailer (it wasn't in the most recent one).

Here is the link:

http://www.x2-movie.com/trailer2/

thanks! I was looking for that last night and somehow couldn't come across it.