@daverod,
In 1913, the Ford Model T, created by the Ford Motor Company five years prior, became the first automobile to be mass-produced on a moving assembly line. By 1927, Ford had produced over 15,000,000 Model T automobiles.
The United States is also home to three large vehicle manufacturers: General Motors, Ford Motor Company, and Chrysler, which have historically been referred to as the "Big Three".
Other automakers
with manufacturing operations in the United States
BMW
Honda
Hyundai
Kia Motors
Mazda
Mercedes-Benz
Nissan
Subaru
Tesla Motors
Toyota Motor Corporation
Volkswagen
Import-only marques
The following marques are currently imported to the U.S., and not assembled domestically.
Alfa Romeo
Aston Martin
Audi
Bentley
Bugatti
Caterham
Ferrari
Fiat
Genesis
Jaguar
Koenigsegg
Lamborghini
Land Rover
Lotus
Maserati
Mazda (previously assembled in the U.S.)
McLaren
Mini
Mitsubishi (previously assembled in the U.S.)
Morgan
Pagani
Porsche
Rolls Royce
Smart
Volvo (will start U.S. assembly in 2018)
https://en.wikipedia.org/wiki/Passenger_vehicles_in_the_United_States
Is this 'immigration'?
The best-selling passenger car in the United States is not one from the Big Three, but the Toyota Camry, although it is also manufactured in the US
"The Big Three" refers to the three largest automobile manufacturers
headquartered in the United States. While there have been roughly 1,800 car manufacturers in the US over the course of the 20th century, only three large corporations with considerable sales numbers were left by the 1980s. The term is applied to General Motors, the Ford Motor Company, and the Chrysler Corporation.
General Motors:
The corporation sells its vehicles in the United States under the following divisions and subsidiaries:
Buick
Cadillac
Chevrolet
GMC
Hummer, defunct as of 2010
Pontiac defunct as of 2010
Saturn Corporation defunct as of 2010-11
Oldsmobile defunct as of 2005
Ford Motor Company:
The corporation sells vehicles under the following brand names and subsidiaries:
Ford Motor Company
Lincoln
Mercury defunct as of 2011
Chrysler:
Chrysler manufactures and sells vehicles under the following brands:
Chrysler
DeSoto defunct 1961
Dodge
Imperial defunct 1975
Jeep (acquired in 1987 after Chrysler absorbed American Motors' business assets from its parent owner Renault)
Ram Trucks (formerly Dodge Truck Division)
Plymouth defunct in 2001
AMC defunct in 1987 (remaining stock purchased by Chrysler Corporation from Renault)
Eagle defunct in 1998 (was established as the successor to American Motors)
SRT defunct as of 2014 (consolidated back into Dodge)
de·funct
adjective
no longer existing or functioning.
These marques from the Big Three are currently marketed in the U.S.
Buick
Cadillac
Chevrolet
Chrysler
Dodge
Ford
GMC
Jeep
Lincoln
Ram
What are the driving differences between these 'Big Three' marques and the others?
These offer long road/distance driving with much easier and much more 'loosed' than the other 'short distance', 'tightened' driving.
And it would make sense since the U.S has many many square miles it covers.