and here i thought MB/Audi was luxury...

About half of taxis in Finland are MB's.

I drive a Benz C-class and a BMW 5-series taxis EDIT: Both cars are pretty new.. bought a little over half a year ago

in Darmstadt they use them too!

yes, but they are a bit different than the merc and audis you think of here. They're usually the smallest engine (diesel) available and have very little equipment, cloth seats etc... they're purchased for their durability

now an omega break for a taxi... that'd be nice.

Yeap, they buy strippo bimmers and mercs and audis for taxi duty over there...and VW is viewed as an aspirational brand! Ever-so-backward from the states, but it's not a bad thing IMO

Same here in The Netherlands... All Merc's E-Class or S-Class.

Far from strippo... Leather is not rare at all, 95% of the cars have aircon, most are automatics with cruise control and they're always all electic. And the 200 or 220 CDI engine is more than adequate to move Benz's around as long as speeds closing 120mph aren't needed. The BMW I'm driving is 525d, that's maybe a little too powerful for the purpose. BUT: there are some crazy ass taxis around... V70R and X5 are the first to come into mind.
VW Passat, Volvo V70 and S80, Peugeot 406, Toyota Avensis and Mazda6 are pretty common, but as I said, about half are MB's, C, E and S-class

BTW, if I bought an own taxicab, I'd go for either for a Volvo V70 D5 or Skoda Superb TDI

As laurens says, it's pretty normal...

Last week after going to a party I was brought home by a E-Class with 2 friend of mine..

Here is a real bummer .... they use Mercs as Taxis in Nigeria !!!!!

Once when my family was on vacation in Sweden I made everyone wait until a specific car came up next in the Taxi line (since you're supposed to take the first one) because I wanted to check it out. Can't remember what it was now...