Some initial research indicates that only about 1000 '66 Convertible "Q" code (428 engine) Landau cars were produced.Equipped with the optional Hi Performance 428-cubic-inch (7.0 L) V-8 rated at 345 hpPart of the "Peterson" collection of Idaho. This car is equipped with the "Dual Headrest" Landau over the rear seats. Featured in the national NAPA calendar in Oct of 1995 The car was repainted, but remains original otherwise.Approximately 26,300 original miles. C6 3 Speed Automatic.15 inch deluxe spinner wheel covers. Power windows, wing windows, convertible top and antenna. Clock. AM/FM radio. Swing away steering wheel. Vintage cruise control. Safety belt light.