Interesting accessories on the bumpers...

I think this car was repainted. See the part of the lock mechanism on the B pillar. It is red... and decals are also strange.
However it is in good condition.
The white thing at the top of the fuel tank may be a 2 way valve. Oetker mentioned a bulletin in this topic:
http://www.matrasport.dk/forum/index.php/topic,1139.30.html