Yeah, that's a huge extinguisher. That can't possibly be the minimum required size in Europe. I tried Googling for some photos and
this is the only one I could find (photos loaded a bit slowly for me). The small (600g of dry chem, I think) extinguisher is in a compartment at the front base of the passenger seat. Very unobtrusive, especially if the seat isn't pushed all the way back.
While Googling for this photo, I read that in Spain, you're required to carry (among other things) a spare fan belt, a full set of replacement bulbs, plus all the tools necessary to do the job. I read on another webpage that Spain also requires that you carry a spare set of glasses if you normally wear them. (???) Anyone familiar with Spanish driving laws to corroborate? Wow, what else do they require in each car? Four full-size spare tires? Just kidding. <img src="/images/graemlins/wink.gif" alt="" />