215/35/18 ??!!? Is that a size for Fiat 500 or something ?
215/35/18 is a huge tyre, I suppose if you meant new FIAT 500, it might fit.
All four tyres should be the same size and type on the 156. How well do you think the VDC (Vehicle Dynamic Control/ESP) will work (on your facelift 156), when the rear tyres respond differently to those at the front? Why would the lightly-loaded rear tyres justify a wider contact patch than the fronts? Do you transport gold bars in the back?
I'm not saying you shouldn't fit 18s, just that you should have the same size at all corners. And as for pushing boundaries, remember that safety is at stake...
I just bought four new 17" tyres today. 215/45, fitted to original alloys from a 2005 156. There's a few millimetres of clearance to the rear wheelarch liner bottom corner, and about 5mm between the front tyre inside sidewall and the hub carrier extension pillar. 225 would be pretty close, if not actually touching...
My new tyres are made in China, cheap-as, whole set for equivalent of 150 pounds. The make is 'Westlake', sounds like a boy-band to me
On our roughly-surfaced roads, they're bloody noisy, but very quiet on the smoother roads. I shall be driving like a granny anyway, no money for speeding fines and 70 points on my license, so it doesn't concern me that to save hundreds of dollars AND look cool, I've compromised safety and the lives of other road users, with probably super-hard rubber that turns into ice skates when the road's wet. As for treadwear, I'll be dead long before the tyres wear out.
At least all four of my tyres will have equally poor grip, I'm expecting much less grip than the 205/55 16s I had before, since I've found in the past that over-wide tyres have less grip than standard width - the contact patch is wide but short. For all about tyres, see Car Bibles : The Wheel and Tyre Bible Page 1 of 2
. For a car like the 156, I think 185 would give optimal grip - anything bigger is just for show
Even my Punto had 195s and I lost the back end under braking more than once, something that doesn't happen with an Uno on 155s.
Did you know that '82' is standard profile - anything less is low-profile - we tend to forget that these days when we think of 45-profile as 'normal' when really it's freakish... and we wonder why tyres let go with a snap compared to the olden days (whether or not the tyres are Made In China
) Ever noticed how Formula 1 cars - or rally cars - never use low-profile tyres? It's because they're made for SPEED and they're not concerned about looks... no-one wants to see a Formula 1 car blinged out on chrome 20s