hairychested, I’d be suprised if you gained anything noticeable, apart from the look.
I was thinking of replacing my wheels with some aftermarket ones, as the original ones that came with my car are corroding quite badly. To get them dipped, blasted, have a few erm kerb marks cleared up and then powdercoated is going to cost £280!!
A set of nice looking Wolfrace wheels that will suit my car WITH 4 new tyres (TOYO Proxes T1-Rs) costs less than £500. So, pretty much the same as getting mine refurbed and getting new rubber. Hmmmm.
Plus, the 1″ larger wheel I would go for (17″ over 16″) means that the tyres are generally about £8 cheaper each. Yes, really.
And yes, I am sure that proper racing alloy wheels are lighter than steel, but I doubt most of the ‘for show’ alloys on the market would make much difference to the weight of the wheel/tyre combo. No proof either way, but just a suspicion. There’s a reason that ‘proper’ alloys are so expensive.