hi guys just thought i'd put together a little guide to help you along your way to choosing a new set of wheels and tyres for your stilo
when choosing new wheels you have to know what PCD (Stud pattern) to go for, the stilo is 4x98 but you can use 4x100 with the help of wobbly bolts.
the 4x100 stud pattern is most commonly found on Vauxhall, Renault, Honda etc etc.
you also need to make sure you have the correct "sprigot" ring for your alloys. the centre bore for the stilo is 58.1mm
Sprigot rings can be picked up through any good alloy wheel retailer if your buying second hand wheels without the necessory rings.
also you must make sure that your wheels are the correct offset for the stilo, the stilo takes a range of offsets for ET35 up to ET45 some designs may require a spacer to stop your wheels fouling your brake caliper.

here is a rundown of the vital wheel statistics for the stilo:
Make : Fiat
Model : Stilo
Year : 01>
PCD : 4x98
Offset : ET35 to ET45
Bore : 58.1mm
Fittings : B 12x1.25

when it comes to choosing tyres for your wheels here are the correct sizes of tyres you need for your stilo.

Tyres for 15inch wheels: 195/65/15
Tyres for 16inch wheels: 205/55/16
Tyres for 17inch wheels: 215/45/17
Tyres for 18inch wheels: 225/40/18
Tyres for 19inch wheels: 215/35/19

i hope this helps you guys when chosing a new set of wheels and tyres for your stilo.