The thing I love about Pepsi Convoy is that he's not actually Optimus Prime:

http://tfwiki.net/wiki/Pepsi_Convoy

This mold was released in 2005 in Japan. Then this guy got later released by hasbrotoyshop in 2007:

http://tfwiki.net/wiki/Image:PepsiOptimusPrime.JPG

With some subtle differences. The writing on the box is now all in English, the Pepsi symbol is different (American pepsi not Japanese pepsi) and the character is now Optimus Prime again (short smokestacks and all!). I never really liked the idea of OP capitulating to corporate greed (even though he's made by Hasbro - I realise the childish naiivity of my statement ) so Pepsi Convoy was the mold I was after.

I do remember seeing some Pepsi OPs in Target a few years back and it being the hasbro version. It was one of those molds that I can't bring myself to pickup due to those poor shortenned smokestacks. Just not right.