Get 2012 Mercedes-Benz M-Class prices including invoice and MSRP. The 2012 Mercedes-Benz M-Class base MSRP price is between $48,990 - $94,990, but the invoice pricing for the 2012 M-Class is between $45,561 - $88,341. Each dealer has their own regional rebate plans and mark-ups, but the dealer holdback for the 2012 Mercedes-Benz M-Class is between $1,470 - $2,850. With a base target price of $45,561 - $88,341 means that you'll be looking at a total target price for the 2012 M-Class at around $49,149 - $91,929. To learn more about individual trim pricing, you can choose one of the 2012 Mercedes-Benz M-Classs below and see specific details.