Mercedes-Benz 300SL Sells for $4.62 Million at Auction By Huw Evans Jan 23 2012 Share this Article Tweet The cost of the entire aluminum body was exorbitant, even by 1950s standards, which helps explain why so few SLs (29) were ordered this way. Continue Reading... Filed under: Events Exotics Featured Articles Lifestyle Sports CarsTags: 2012 Arizona auctions, classic cars, collector car auctions, Gooding & Company, High profile sales, Mercedes-Benz 300SL gullwing, Vintage grand tourers