as an ex-pom I can describe how mx5s go in the snow...
...not at all

they might perfect cars in every respect, but in the snow they're totally
useless. Even the slightest covering and all that happens is you do
doughnuts - problem is too light, wide fat tyres and too much power (well
perhaps not in a 1.6 tee hee hee)
I had to abandon my mx5 twice in the snow north of Manchester and when
friends brought me back the next day to retrieve they couldn't believe how
the car still couldn't drive on even the slightest covering of snow on the
road...buses, trucks, even ladas (total humiliation) were cruising right buy
and I was just spinning circles
still I'm sure an F1 Ferrari doesn't go so well in the snow and who'd want
to drive a Toyota 4x4 ute every day...bugger that eh!