I never understood why you didn't like the dark grey wheels on your silver Panda but it's all a matter of personal preference and taste so no use debating about that.
I'm not crazy about red wheels on silver cars personally.
I do like gold, light blue, white and gun metal grey on silver cars bjt it also depends on the wheel style. If I had a silver Panda though I would go with the light blue Tec As2 wheels and never look back. These wheels ride so nice with the Novitec springs, I just love it.
I wonder what you will end up with but I do hope to see it before some dreadfull winter wheels will be fitted again...