The miniaturisation of the American car was the theme that dominated proceedings at the LA motor show yesterday. Four years is the blink of an eye for the motor industry in general, and yet four years ago, I went to my first American motor show in Detroit and found it awash with hulking pick-ups, SUVs, MPVs - exactly what I expected.

LA motor show report and launch latest

Since then, America's seen unprecedented fuel prices, and its car business has come under pressure from competitors and legislators to work towards greater fuel efficiency.