You can have either highest grip or longer lasting but not both as the highest grip tires are going to simply wear out much faster even if you are fairly easy on them meaning not using the grip they provide or seldom doing so, they will still wear out pretty quickly.
The highest grip tires come with a 200 or even lower wear rating.
You would be better off to get a higher wear rated tire known to last really well and still be able to use it to it's limits much more often to get the fun and last longer.
I generally run the highest grip tires so less experience but the numbers, reviews, are what to look at Tirerack.com does extensive testing and is the best place to find out how they compare different tires in the same league.
This tire seems to be good, I have driven on them on the Octane Academy and liked them well enough and they did really well against other tires in their class, wear rated at 340 so still might not last as long as you wish but should last much longer than the 200 rated tires.
They are exceptionally wide for a tire marked 205/40 or 45/17, I think perhaps to wide for a 7" wheel to work at their best but they felt good when I drove them at speed on track.
BGF Sport Comp 2
http://www.tirerack.com/tires/tires.jsp?tireMake=BFGoodrich&tireModel=g-Force+Sport+COMP-2
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Those are still summer tires meaning when it is cold they are not going to grip well so you may need an ultra high performance all season and this tire, same manf, is one of the very best. It has a narrower tread which I feel is better on just a 7" wide wheel, only in 45 series so a bit taller than stock. Wear rating is 400 which is closer to what you want to get out of them.
BFG Sport Comp 2 A/S
http://www.tirerack.com/tires/tires.jsp?tireMake=BFGoodrich&tireModel=g-Force+COMP-2+A%2FS
I have these on my car, Mich PS-3 A/S and they are an outstanding 3 season tire as not good in the snow but OK if a light snow and take it easy, great in the rain, dry grip is amazing for an all season and they wear really well and handling is superb for an AS, rated as the top AS made.
Tread width is still pretty wide at 7.5" but they seem to do well on 7" wide wheels.
http://www.tirerack.com/tires/tires.jsp?AFFCODE=AD5&tireMake=Michelin&tireModel=Pilot+Sport+A%2FS+3+%28W-+or+Y-Speed+Rated%29
I happen to be selling mine as going down to 16 or 15 for a better ride and lower weight wheels, I have ten 15x9 wheels, race tires, summer tires and want 15x8 or 16x8 all seasons now

My tires only have 3k miles on them and rated at 500 for wear so they would last far longer than the others listed or any summer only and ultra high performance all season.
I did not start this to try to sell my tires, just thought about it right now and in Sacramento for a few more days so let me know if interested.
Have a great day

Rick
775-600-5718