...on new wheels and tires.
I couldn't find the combination of extreme lightness and price that I would have liked in 16" rims for my 1990 Miata, so I accepted that 15" was going to be the way to go.
So I've just ordered four 949 Racing 15x7.5 6ULs with Toyo T1Rs in
195/50 and all the extra bits (new lug nuts, hub-centering rings, valves)The 15x7.5 6UL weighs 11.5 lbs and the 195/50 T1R weighs in at 16 or 17 lbs. That makes for a huge step down in weight from my previous Ronal R20 16x7" wheels with B.F. Goodrich EuroTAs in 205/45-16 at a total weight of 39 lbs per corner. Also the price of the 6ULs seemed very reasonable for a wheel in that weight class at $149 (US) a piece.
Just waiting for them to arrive by FedEx ground!