For what it's worth...
 

Yesterday I had 4 new tires installed on my stock MCSCa. I went with the 205/50-16 sized Bridgestone Potenza G009 tires. What a difference non-runflats make!

I immediately noticed a less harsh ride and MUCH quieter. Handling is not quite as crisp - but certainly not shabby.

My reasons for the G009 tire - a 50,000 treadwear warranty, highly rated on TireRack and good performance.

If you are looking for performance tires (not ultra-performance!) with longevity as an important feature, I think you should look at the G009. Also, the slight increase in size only translates to <2% loss in speedo accuracy. The miata web site calculator indicated that at 60mph on speedo the actual speed is 59.1 mph. I can live with that.

thanks for the tip, i might get those down the road for my Legacy.

btw, what psi are you using? :)

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