I have booked my Maruti Swift VDI and predictable to deliver it by this month. I am preparing to put alloy wheels on my car. I heard that, if we are place alloy wheels we have to modify the tyres also to get good look. Whether I should put 14 inch tyre or 15 inch tyre with alloy? If I put 15 inch, will it have any performance impact? If I put 14 inch, will it have good look?