Even am on the hunt for 12" Alloys for my Carribean blue alto..
First thing you get on asking alloys for 12" is a deadly look by the dealer
but upsizing is not a good option atleast on an alto because i know couple of my frnz who are having issues with 13" on alto.
i have decided on PY 517, the second pic.
I was quoted 9k at Punjab tyre sole, Vashi, Navi Mumbai and 12.5 for same at Darshan tyres, JM road, Pune. so told Punjab tyre guy to order set of 4 and will put during diwali when i visit my parents in Navi Mumbai. also getting free alignment, balancing and nitrogen!!!
rest of the designs are too common or dont look good on the wierd color of my alto!