I'm in Winnipeg. I got mine on the tail end of winter, with only a couple of -20 days before spring, but from what I could tell, once the car warms up it works the same as in summer, just gets there a lot more slowly. However, on my first tank, this still hit my mileage hard - 27mpg. This may improve next winter, since that was the first tank. We shall see. I didn't get around to plugging it in, cause on the one night where it was gonna get intensely cold, I got home when it was dark and couldn't find the cord. :>

Same rules apply here as anywhere else, basically: better FE and performance than the other Camrys (4 or V6), or really any other car of this size, so far as I know. I actually got into a debate with a diesel evangelist in another forum, comparing mileage of a diesel VW Passat to the Camry Hybrid. It came out a close tie, sort of - my city mileage was slightly better (3mpg) than the Passat diesel, whereas my highway mileage was slightly worse (also 3mpg). However, once you consider that I was comparing my real world calculated mileage to the Passat's "official" numbers, I think that in a real world test, the TCH would come out on top.

I would like to see GM's Volt come to market, with a diesel engine for the charger. THAT would kick ***.