Europe has embraced small cars and hatchbacks especially. Here in the US it's wide open spaces and longer commutes and big old trucks and old Caddy's make up our history...so there's less of a market for a smaller car...I'm not really sure if any marketing campaign would bring up those numbers for cars like ours....
Short of $4/gallon gas we'll keep on buy big trucks... It's not any better for full sized cars though. It's all CUV's being bought and pickups...
I lived in Germany for over 3 years (stationed there). Europe has always had small cars because their roads (other then the autobahn) are mostly windy and narrow. I owned 3 cars over there - a '64 VW (a model not exported to the states), an '69 Opel Rekord (bigger than an Opel Kadette that was exported to the states and sold by Buick dealers) and a
74 AMC Sportabout wagon that was a small wagon by U.S. standards - but a fairly big car over there.
I did drive some military vehicles over there - and many times needed to drive on my passenger side tires on the sidewalks to get to where I was going.
On a relatively recent (December of '13) trip to Germany I had a BMW 525 - and had an extremely difficult time parking in any of the parking ramps because my car was "so big". Driving on some of the city streets was also difficult to maneuver around.
Driving over there was a lot of fun. No speed limits on the autobahn and the windy twisties roads made things fun when there wasn't any traffic.
As far as small cars and hatchbacks from the "American" car manufacturers - they've been around for 50 plus years.
In the early 60's we had the Falcon, Nova and the Tempest, Cutlass and Skylark triplets. In the early 70's we had the Pinto and the Vega/Astre twins (both available in the hatchback).
In the late 70's into the 80's we had the Chevette and T1000 hatchback sisters. We also had the AMC/Renault Alliance (sedan) and Encore (hatchback).