How the auction companies compare based on sales in Scottsdale Arizona since 2002

I can't recall what magazine I got this from, probably Hagerty or Automobile

a gif diplaying the evolution of F1 cars since 1950

found on the always interesting for it's off beat cool finds, http://autozine.com.br/

Speed limit infographic

found on http://thekevinchen.wordpress.com/2010/06/08/need-for-speed/

drag coefficient, aka the smaller the number the more aerodynamic the car

that last car, the one at 0.24 is the Tesla.