Luxury Car Canada (online luxury car magazine) has a "Test Drive Review" article on the 2007 Mercedes-Benz S550 4Matic for those interested. It is an extensive review with photos written by Jil McIntosh.  2007 Mercedes-Benz S550 4MATIC Reviewed Base price $122,000 Options $ 10,400 (Premium Package of leather/burl walnut steering wheel, side window roller blinds,...