I'd think before investing in summer wheels and tyres.
It's probably universally accepted that if you live in climates such as ours that if you only run one set of tyres that they should be winter/cold weather tyres, and you'll already have them.
As the video and the web link show a few posts back winter tyres make a massive improvement in the right conditions, but they aren't too far off the pace in warm weather.
I have 2 sets of wheels and tyres for my panda. The 1st set were the alloys with the continental cross contact winter tyres as supplied for the factory on all 4x4 (not cross) and trekking models.
My second set are the Fiat accessory wheels which are the same as fitted to the Panda Antarctica. If you've not seen them they are just like the standard alloys but painted in a satin grey and then diamond turned for shiny spoke. They look lovely. That's the main reason I went for them.
I also figured that I'd be saving my winter tread for when it's most needed. If you didn't know, winter tyres have little groves cut in the tread called sipes (I always think of most easterly pandas when we talk of this, haha) which grip into the snow and massively enhance grip. These wear away by around 4mm so its best to replace them by then if you are driving on snow.
As for economy, I've found that I get approx 5% better with the summer wheels, they have Michelin energy saver on them. However, all cars use more juice in colder weather so there's that to take into account.
Personally I think economy is not a good reason to buy summer tyres.
If you only have one set of rims, the cost of switching the rubber over twice a year will greatly outweigh any savings made from better mpg on the summer tyres and wear on the winter tyres.
If you still do want a second summer tyre and wheel set, you can buy complete steel sets from mytyres.com but they may not look as good as your alloys (unknown as they may look great as I've seen some cars with steels that look great, I've yet to see a Panda trekking/4x4) or you could go the accessory route like I did.
You could buy aftermarket alloys, but then that may bring insurance issues as some insurers shy away from any so called "modification"
You final option is you could buy my summer set of wheels and tyres if I do indeed ever get round to selling my 4x4. That may never happen though?
