Living in Western Canada and near the mountains, we've experimented with a few things to cut down on the COLD AIR swirling from the back through to the front. Not so much a problem with the noise, but it can get pretty cool! We've found anything blocking the air movement between the seats helps a lot. A small duffle bag (if going on a trip) or even my FB jacket across held in place by putting the arms pinched under the headrests. NOTE: Remove jacket first If you position the jacket right, the logo looks pretty good while driving too. This is an easy, non permanent, way to combat that cold air flow. I agree with others that have said the back seat is no place to be on the highway in a vert.
We lived in Alberta for 12 years, with almost equal time split between Calgary and Edmonton. Perhaps the best drive I ever took in the convertible was from Calgary to Banff on a gorgeous summer day. Amazing drive with an unobstructed view of the Rockies.
