A darling of classic-era sporting enthusiasts, the Bugatti Type 57S (Estimate: $8,500,000–10,000,000) is legendary for its high power, light handling and overall refinement. Just 43 of the exceptionally rare cabriolets were built on the same competition chassis as the iconic Bugatti Atlantic Coupé. This 1937 example, one of only three open cars with rare coachwork by Vanvooren of Paris, stands out from the already exclusive group. Offered for public sale at RM Sotheby's Amelia Island on 10–11 March for the first time in its 80-year history, the 57S has never been completely disassembled. Click ahead to explore its exquisite anatomy.