Hello Carlo, welcome to TM.
If you get a magnet and place it on the panels (through a piece of cloth to prevent marking the paintwork ) if it is attracted it will be steel if not alloy.

Either were available at the time of your car.


2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev