Here we go again. Just as muscle car prices begin to cool, Hemmings informs us that "more than two dozen american muscle cars from a single private collection will be offered for sale at the world-renowned Bonhams & Butterfields annual Quail Lodge auction in Carmel, California." (Wouldn't surprise me if this owner had replaced his doorbell with a sound effects recording of a big V-8 being unleashed.) Says Hemmings, "there are no fewer than 12 Corvettes, five Chevelles, three Camaros and three Mustangs. Some of the more valuable models include a 1970 Plymouth Hemi 'Cuda convertible, one of 14 ever built and one of nine with an automatic transmission. The pre-auction estimate is between $750,000 and $1 million." The auction takes place Friday, August 17. For more information, call 800-223-2854.