Re: The Model 3 is coming.... er??? 2019 or is that 2020?
"the Model 3 is the wrong car for Europe in that it is a sedan/saloon "
"What do they drive in Europe? I had thought the truck/SUV dominance was primarily elsewhere."
In the UK at least the top-selling car is the Ford Fiesta (and pretty much always has been)
The next seven (at least for 2017) are hatchbacks, with the Mercedes C-class (at no. 9) being the only sedan in the top 10. BMW 3-series is probably just outside the top 10, but aside from those it's hatchbacks (including SUVs and MPVs) most of the way.
France is similar in it's love of hatchbacks - pretty much every French car model is a hatchback and the French are fairly partisan in their choices.
Germany likes their BMWs, Audis and Mercs as sedans, but even those makers have a lot of hatchback variants (BMW 1-series plus all the Xs and GT variants; Merc A-class, CLA and all the Gs; Audi A1, A3 and all the Qs)