Tires MICHELIN or Nokia

look into lightweight battery (I run a Braille 21lbs in my Nismo) and tires...the Michelin Pilot SuperSports are pretty lightweight.

i've replaced some RFTs on my Z4 with Michelin Pilot SuperSports, and LOVE them, but i doubt they're in your < $500 budget..

+1 Had these swapped onto the GTI from the GLI that I traded. On both, they were transformational. Exceptional dry grip, and almost as good in the rain. Amazingly low tire noise and pretty decent tread wear so far.

Michelin Pilot Super Sports. They are probably the best tire on the market. Fairly low noise as far as summer tires go. They grip well in the dry and the rain.

Neuspeed RSe12 wheels with Michelin Pilot 4S tires

instead of so-so ContiProContacts, my baby is now sporting top-of-the-line treads - Michelin Primacy MXM's.

I paid $220 for 4 almost-brand-new Nokian WRG2 a month ago, installed. They were at about 90% remaining still. I'd rather get slightly-used good tires than brand-new pieces of sh*t. 100% happy with them so far.

I have Michelin Pilot HX MXM4s on right now, and they're a nice tire.

I bought myself a set of Nokian Hakkapellita R's and it makes a world of difference on snow and ice.

No idea about prices and avaliability where you are but as far as winter tyres go I recommend Michelin and Nokian.