Air brakes were first deployed at the 1955 Le Mans, those technologically advanced 300 SLR Benzs thought of everything!

Above, Fangio

Both photos via Coolamundo http://sharonov.tumblr.com/

When Carrol Shelby was leading a race team

Phill Hill and Dan Gurney via: http://zelastchancegaragedu78.blogspot.com/

Above is Miles, Hulme and Shelby on the right hand side of the photo

Via: http://spiriteddrive.tumblr.com/

Great American Race winners (91 and 97) a 1910 Selden and a 1920 Packard Indy Special were in the race car area of the Grand National Roadster show

These are both part of the Frank Currie collection, Currie is famous for gears and differentials http://www.currieenterprises.com/