Secretly I think he really does like America and it's cars. But with the application of his sarcastic British humour. But he has a point about American cars and their lousy interiors, wobbly handling and inability to get round corners. 'Handles like a land ship' as a English friend put it. Built down to a price I think. It is a puzzle that you Americans just can't get your cars right.
One thing to remember is that he bought a Ford GT40 with his own money! So he can't really hate American cars.
I laughed out loud when he tried to fill the Caddy and the Jag "built by Communists in the midlands" with water and when he blew away the Prius is a .50 calibre machine gun. Then when he walked across the intersection without getting killed. It would never happen here, he would die! Classic!
Still I would sell my soul for a '68 Mustang.