6j x 15 tyre choices?

[Routs1811]

Hi guys, gonna need some new tyres in a bit, what size should I go for on the standard 15" alium alloys? As far as I know they come standard with 185/55r15 but i've heard some use 190 or 195 sections and anywhere from 45 to 55 walls. Which is best fitting and performance wise?

 

[alistairolsen]

None of the above, fit 195/50 like every other OEM and be done with it, they're ridiculously cheap and are available in decent brands