Is a new 15" wheel/tyre combo the best way to spend next £1,000 on my 172 Cup?

[Braveheart]

My Cup is used for occasional road use and track days using the standard 16" Turinis with Toyo R888's.
Some guys have recommended to me to downsize to 15" wheels/tyres to improve on-track handling.
If I do this, I'd likely go down the new route (probably TD 1.2's with either R888 or Yoko A048) so it's going to cost the best part of £1K.
Is it worth it or should I be looking to spend the £1K on other upgrades?
I should say that I've already done suspension mods (B14 coilovers & AST mounts) & have done the standard brake upgrade (discs & pads). The engine is std apart from intake, exhaust and RS Tuner map. Got buckets & harnesses.
Appreciate any advice/opinions.

 

[Goodj]

Sounds like a sound move.

Cheaper tyres at that size too.

although, in fairness, do you really do enough to justify waxing a grand on rims and boots for the occasional day? If your occasional track day happens to bethrashing down with rain then you may be worse off than just sticking with a set of good "road" tyres. COnti sports or similar

 

[Wests Renault]

15" TD 1.2's are always coming up 2nd hand so I wouldn't buy them new.

 

[Space Cadet]

I bought a set of 2118's with 888's filled with Nitrogen for a lot less than that at Demon Tweeks, may be worth giving them a call.

 

[Bluebeard]

You will be able to sell your current turinis (If they're tidy) without tyres for £250.

If they've got good tyres on, closer to £400.

Buy some secondhand 15 inch wheels (they're always popping up on here) and some brand new tyres.

You will save yourself a fortune.