Having just played Crazy Taxi 1 in the current DC competition, I was reminded about the VMU mods Sega Hitmaker made for Crazy Taxi 2. They were hosted on the official CT2 webpage along with score rankings and other goodies. I think there were 4 in total but please correct me if I'm wrong.

Around Apple Another Day - Standard


Around Apple Another Day - All cheerleaders mod


Small Apple Another Day - Standard


Small Apple Another Day - All mime artists mod


As you can see the sky has also changed to sunset and sunrise respectively. They were also notoriously tough as the customers on each variation were placed in obscure areas.

I've also found the wallpaper and paper models also hosted on the official site at archive.org

Wallpaper
Gifts

Paper craft models of Slash's & Axel's taxis
Lounge_DownLoad