How much would you pay for a modern tech 15" 60 series performance streetable tire?

As for the tires, yeah, there are some track tires available in 15" that will work, but not even all of the autoX and road course classes allow them. Most of the popular classes that are fairly easy for the beginner/layperson to do, like CAM or even Optima, limit you to a 200 treadwear tire. So, it has to be a street tire, not just technically DOT legal. Most of the track tires are rated 100 or below for treadwear.

Just an FYI there are all seasons in the 200 UTQG range. If that is good enough for an actual track driver I find it hard to believe you guys need more on the street for braking or for cornering. I run gumball tires on my street/strip car and on my circle track cars but I've never needed more on my daily cars than a high performance, properly sized tire. I've been in the winners circle, guess that makes me a "real driver".

VNTNED, that is a slick little car you have there.