The following two 6.5Jx17 ET40 rims from the Skoda Scala and Skoda Kamiq could be used with either 205/40R17 or 205/45R17 on the A2.
Fitting a 205/40R17 or 205/45R17 to a 6.5J rim would give a little more ride comfort and rim protection, compared to the standard 7J rim.
According to one source, they weigh about 10kg each. However, 17" rims are never going to compare well on weight with the super lightweight 6Jx15 ET38 Pepperpots as they only weigh about 5.7kg each.
The centre cap could easily be replaced with an Audi version.
The silver version was available new on ebay last year for just over £100 each. However, this low price no longer seems to be available. The black version was always over £150 each.
It's common for the VW Up! community to fit Michelin Pilot Sport 5 205/40R17 84Y XL to their 6.5J rims, with apparently good results. Michelin CrossClimate 2 is also available in this size, which would work better in the colder months, not just snow.
Below, I've linked to the Vredestein Quatrac 5 in size 205/45R17 as it's one of my favourite all-season tyres. It's a non-directional tyre, which is now quite rare for an all-season tyre. The latest Quatrac 6 is a directional tyre, although the older Quatrac 5 is still available in some sizes.
Another advantage of the Quatrac 5 that I've linked to below, is that with a V-speed rating it isn't massively over-specified with regards to the speed rating, unlike the W and Y speed ratings. Over-specifying the speed rating might cause the tyre's sidewalls to become stiffer and therefore the ride harder.
VOLANS 6.5J×17 ET40 5/100 57.1 Silver 654071497H 8Z8
VOLANS 6.5J×17 ET40 5/100 57.1 Black 654071497J JX2
Michelin Pilot Sport 5 205/40R17 84Y XL (Euro label C A 72dB)
Buy online cheap Michelin Tyres / Car / Michelin Pilot Sport 5 PS5 205/40 R17 (84Y) XL TL Fuel Eff.: C Wet Grip: A NoiseClass: B Noise: 72dB
www.camskill.co.uk
Michelin CrossClimate 2 205/40R17 84W XL (Euro label C B 69dB)
Buy online cheap Michelin Tyres / All Season Car / Michelin Cross Climate 2 205/40 R17 84W XL TL Fuel Eff.: C Wet Grip: B NoiseClass: A Noise: 69dB
www.camskill.co.uk
Vredestein Quatrac 5 205/45R17 88V XL (Euro label D B 70dB)
Buy online cheap Vredestein Tyres / All Season Car / Vredestein Quatrac5 Vredestein Quatrac 5 205/45 R17 88V XL TL Fuel Eff.: D Wet Grip: B NoiseClass: B Noise: 70dB
www.camskill.co.uk