Correct, Steve. These Brazilian VW heavy trucks are actually MAN mechanicals, with engines up to 340 HP, but this one has an early VW light truck cab - which is one reason it looks a bit small on this rather large vehicle!
There are quite a lot of VW fire trucks in Brazil, and some have been exported to other South American markets. Many are large high volume tankers like this one, because a lot of towns rely on tankers rather than hydrants for water supplies at fires.
Added by Steve Prosser on 25 January 2014.