1.When i was taking delivery of my alto few years back i to asked the same question and the answer i got was yes and they showed me 2 alloys and they didn't look good and they were charging to much
2.I am using 185/r13 60 in my alto for about 4 years now and still don't have a problem but when i put more than 4 people the trye scrap the wheel well because of the wide tyres
3. i get 15+ with the wide tyres and on HW i get around 20 but 155 would be a good upgrade and would hurt the KM/L factor much
4.Yes the dealer does give the option of body colour bumper but will cost you a bomb get it done from a good paint shop will cost you no more than rs.2500
5.i would suggest k&n filter to improve the fe but wouldn't help much
__________________ MANIK NANDA
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