Hi Jay, welcome to the club. When I bought my Verve, I asked the Service workshop Manager what I could modify on my car without affecting my warranty. I asked about 16" alloys, full Stainless exhaust system (from cat. back), Induction kit and changing the head unit. As far as he was concerned, they would all be fine as long as anything electrical was done properly with the exception of anything to do with the running of the engine, like chipping. He also said that if anything did go wrong and they suspected it was my modification that had done it, they would have to prove that it was the fault of the modified part. He admitted, that could be hard to do.
I was told by a few guys at the dealers to bring it back when completed as they wanted a look. Sales Manager, salesman I dealt with, service Manager, Parts guy and a few mechanics were all drooling over it. You'd think they'd never seen a 107 before
. The only negative comment was from the sales Manager, about me having a sunroof again and weakening the structure, like he complained about when I traded my other car in. The 107 doesn't need the roof support removed to fit one, so there's no problem, That support is just to stop the roof skin vibrating, its not structural as such. In fact the instructions for fitting the roof said to remove it. That's a sunroof option in the 107 accessory list as well.
IF you are looking for wheels, The set I have are 16"x7" stud pattern is 4x100 and offset E35, my tyres were supposed to be 40 profile but they ran out so they sent 195/45/16 instead. Only problem I had was N/S rear tyre caught on a little sticky out bit on the inner wheel arch, when the suspension compressed more than half way. Sorted when I bent it up. The 3dr has more space I think as it doesn't need to dip in to allow the rear door to sit flush with the bumper. I also have spring assisters in the rear, so it doesn't droop as much when 4 people are in it.
