Coolest million-dollar cars for sale at Pebble Beach

These are some of the most interesting multi-million dollar cars for sale at this year's Pebble Beach collector car auctions.

1960 Maserati Tipo 61 'Birdcage'

pebble beach cars rm maserati
  • Auctioneers: RM Auctions
  • Est. value: $3,000,000 - $4,000,000

The "Birdcage" nickname for these Maserati racecars was suggested by a distinctive lightweight chassis made from narrow tubing. The car's in-line four-cylinder engine was mounted at a slant, allowing the hood to sit as low as possible between the car's bulging fenders.

This particular Birdcage was driven by racing legends Carroll Shelby, Stirling Moss and Dan Gurney among others. Together, Moss and Gurney drove the car to victory at Germany's Nürburgring. Much later, those two drivers autographed the car and their signatures can still be seen.

  @peterdrives - Last updated August 18 2013 01:58 PM ET