My first Triumph TR7, rwd sports car was brilliant on 175/70-13 S-rated summer tyres, so neither rwd nor sports car make for impossible driveability in winter. It's modern, high-speed, wide (and even 'not-very-wide GT86) tyres that are the problem.
Interestingly, my next TR7 (yes, I liked the first one so much I had a second!) was absolutely terrible on snow. It had the same make and model of tyre as the first, but 10mm wider (185/70) and H-rated (18 mph faster-rated) tyres.
If I buy winter tyres, I'll be buying the lowest speed rating my insurance company will accept. Even S-rated are good for 112 mph - I won't be exceeding that on the road...
