They should work, I'm pretty sure. My RPF1 are also 17x7" and only 1mm difference in offset. I think 45mm offset would be better than 42mm. Much more than 45mm and you might get rubbing on turns in the front with 205 wide tires (should't be an issue with narrower). Less than 40mm, and I think the wheels stick out too much, but that's a matter of taste.
I just swapped the front Velozza for a set of Michelin Pilot Sport A/S 3, 84W in a slightly taller sidewall: 205/45-17. Even though they are the same 205mm size as the Velozzas, the Michelins are wider. And slightly taller. They fit fine on the front, no rubbing on full turning, and I have not yet felt them rub the fenders, but I have not yet gone through huge bumps, so not yet 100% sure. I have not yet installed matching Michellins on the rear, still have a pair of Velozzas there (found only 3 Michelins on sale, had to mail-order the 4th so I'll have the rears fitted next week). Why W-rated? Found 3 W-rated tires locally on sale for $89 each vs. at least $140 delivered for the V-rated and $150+ delivered for the W-rated, so with the other 3 tires I got a set of W-rated tires for less than lower rated tires).
There is plenty of clearance between tire and suspension.
I added $4 hub plastic centering rings off eBay, which I think are good to have with non-hub centric wheel hub bore sizes like on Enkei.
To be honest, I think a slightly narrower and less aggressive tire would be a better match for our cars.The Pilot Port A/S 3 are almost as aggressive as summer tires, so they are a bit harsh on rough pavement and noisier than ideal. The noise migh have something to do with the W rating, but I think it's the stiff construction, lower profile, and aggressive thread pattern. The 175/65-15 H-rated version of the same tire on the steelies is quieter, though probably still noisier than grand touring tires would be. The Velozza are between the new and old Michelins in terms of road noise. Actually, I kind of like the Velozza - they are comfortable and fairly quiet, given the fairly low 205/40 profile the rim protector on them is just bigger than the rim and the tire does not stick out, is neatly tucked in. The Michelins stick out more and have much beefier rim protector.
Anyway, if you drive on decent roads, the 17" tires are not harsh and the car is more planted. When I shake the car when parked side to side, when on 15" wheels, it shakes and oscillates a lot. Same as our Prius with 15" wheels. With 17" wheels the car does not move pretty much at all when I try shake it side to side. Most of the wobble on our cars is in the tall tires.
I'll post some pics soon. I think the black wheels look good on gunmetal grey car, I think better than the silver wheels do.
Originally Posted by nova
This is very helpful! I am actually looking at Enkei GW8 17x7- do you know if that works? Thanks!