Get 2012 Mercedes-Benz SL-Class prices including invoice and MSRP. The 2012 Mercedes-Benz SL-Class base MSRP price is between $103,650 - $140,440, but the invoice pricing for the 2012 SL-Class is between $96,394 - $130,609. Each dealer has their own regional rebate plans and mark-ups, but the dealer holdback for the 2012 Mercedes-Benz SL-Class is between $3,110 - $4,213. With a base target price of $96,033 - $130,120 means that you'll be looking at a total target price for the 2012 SL-Class at around $103,852 - $139,238. To learn more about individual trim pricing, you can choose one of the 2012 Mercedes-Benz SL-Classs below and see specific details.