Only advice I can give is to go and try these slightly cheaper tyres

(or budget if you would rather call them that) and give them a whirl, and then buy the higher end of the price range AS LONG as they are suited to your usage/power.

I have been in a V6 turbo and all I can say is its MENTAL!!!

I believe for my friends applications he found that

"cut slick/drag" style tyres

(the street legal ones yes) were the only tyres to give decent grip.

I can find out what they are if you like???
They I know are not cheap, but they are damn good-he spent alot of time/effort and money testing different tyres for the road and came up trumps with these.

You have to be carefull with the more expensive tyres only with the respect that they are more specific to how/where you use them and getting adequate heat into them can sometimes be a pita

(maybe this is why some people find that budget tyres are just as good/seem just as good) 9/10 your tyres out perform your car therefore you have got tyres that need more power/different driving conditions.

Every application is different and no one is really going to be able to help over the net except give you recommendations of which tyre to try.

.

.it will be a long timeconsuming trial but you will get there in the end
