On a happier note, I am now seeing new 453s almost daily in Montreal. Many seem to be of the silver + black tridion variety, so I could be waving at the same (confused) driver over and over. Still, I've spotted a white + orange tridion and several blue/silver and white/black ones as well.
Driving down the highway last week, I passed an older gent in a blue + silver 450 cabrio who was enthusiastically giving me the thumbs-up as I went by. I wish I could've told him that I was a 450 owner too.