http://www.imdb.com/title/tt1076180/
Here is the 6 part documentary series from 2007 presented by Top Gear's James May on what things shaped the 20th century.

Ep 1
3 Stars - 1921 Ford Model T

3 Stars - 1965 Lotus Cortina

1 Star - Ford Cortina


Ep 2
3 Stars - Xingling XL 250 (made to look like the moon buggy)

1 Star - Porsche Boxster S


Ep 3
2 Stars - Volvo V50

1 Star - GMC Yukon

1 Star - 98-01 Nissan Altima

Now these lot are only pictures of pictures of cars, but they are important cos he was seeing what types of images produced more brain activity. So 1 Star for the lot of them.
Ferrari P4/5 (Will be the second one on the site)

Lambo Reventon

Maserati Quattroporte

Aston V8 Vantage Roadster

Aston V8 Vantage


Ep 4
3 Stars - Chieftain Tank

1 Star - Unknown Tank


Ep 5
3 Stars - Cadillac Coupe De Ville (1954-56 i think)

3 Stars - Yamaha FS1E

1 Star - 1985 Ford Capri Laser

1 Star - Saab

1 Star - BMW 3 Series

1 Star - Yamaha 250


Ep 6
3 Stars - 2006 Rolls Royce Phantom

3 Stars - 1925 Buick Tourer

2 Stars - 1982 Mini 1000

1 Star - 06 Chevrolet Impala