Nissan: Strange Primera....

Hi guys,
I am in UK and I recently bought a "K" reg Nissan Primera 2.0 GS
Automatic but doing a search on Google for any info returns a blank.
Is it maybe some kind of import?
I have a manual on order which should be here pretty soon but I'm a
bit impatient to get some idea of the cars specs. You know how it is
when you get a new car, lol.
Also, I read stuff about self diagnostics. What's that all about? How
do I tell if my car has this?
The only problem with in now after changing all 5 tyres, replacing the
glass in the door mirrors and fitting a new drivers door lock is that
the gap between the top of the tyre and the underside of the wheel
arch on the passenger side rear is about 1" more than the same gap on
the drivers side.
Many thanks,
Steve