My car lives in the country in Suffolk and we have a range of stuff locally: my neighbours have an old Mitsubishi 4x4 (and a tractor), another a Ford Fiesta (and a tractor). Another has a Toyota 4x4, a tractor, a Sunbeam Lotus (we all get given them as 21st birthday presents), a range of tractors (mainly backhoes) and a Bugatti type35. Chap round the corner has a 1960s S1 Landie (Land Rover) that has never left the parish (about 10mx 10m)
Land Rover is the archetypal "truck" and, as a "car" (not a utility vehicle) have not caught on well other than as in "SUV" (Discovery) mode for richer farmers, school mums and wannabe country types. Indeed, where you were, the SUV has a nickname "The Chelsea Tractor". Too big and wide for the area it inhabits, drinks gas, driven by small people with lots of agression and widely derided as unfit for purpose/location (some jealousy in that!) Cayennes, Range Rovers, Audi Q7s, Volvo V70s, VW Tuaregs, LandCruisers...... and the occasional Escalade etc
We don't do cars: indeed, Morgan is now about it, since Bristol went belly up (but has been taken over, I understand today).
Vauxhall = GM. Ford = Ford but both with a smaller set of platforms for Europe. Dodge/Chrysler/Plymouth/Olds etc, mostly imported by specialists although I think you can buy Jeep/Chrysler through dealers. I don't think Renault, Peugeot and Citroen are found in the US, nor really Fiat or the full VW range (including SEAT and Skoda brands). Chrysler sent over the Neon... Ford's first non-US operation was, I think in the UK, certainly first in Europe but most cars are sepcific to Europe. You had "our" Escort, have "our" Focus and we have "your" Galaxy but I've never seen a Mondeo, or S-Max or Ka in the US.
If you think this is confusing, wait til Garry weighs in with Holdens....
Most folk here think of an E-class as a big car (size-wise) and so most folk are somewhere between a Smart and a C-class: They fit in our parking bays and down our streets. I have seen F150 type things get stuck and cause traffic jams in central London as they are so big/don't turn easily
If it helps: Audi A3 = VW Golf = VW Beetle = SEAT Leon = Skoda Fabia (underneath). So you could consider the new Beetle as a Golf in lingerie
Your first pic is MB-Brentford. They have a Pagoda in the top window at the moment (visible from the highway) and it's a loaner from MB-World at Brooklands.