yeah they could look nice in black i supose , the only thing is the badge is blue, and blue and black tend not to go togeather, so maby some red abarth centre caps would look nice if you spray the alloys black? these can be found on ebay easyly, and yeah they are common but because they look good lol trust me iv been through countless aftermarket alloys and iv always ended up with the stock ones sprayed white back on my 2b they just go with the car, a 50mm drop all round suits the 2b most , main thing is make sure ur shocks are up for the 50mm drop and not ready to fall off ;p
i think the best colour for your alloys with your colour car would be gun mental colour with red abarth centre caps.
debadged grill debadged boot black drums 50mm drop all round, speakers sub and aftermarket headunit so u can use ipod in car
edit: oh and debadge the active sport badges punto badge 'takes 2mins' use tooth floss a hairdryer and some t cut, OH anddd tinted side repeaters have a look at my thread too see them if you havnt before. they would look great on your car. p.s sorry im acting like its my car but atleast you have some ideas now lol