2007 Grand Sport Prices, Values and Specs

Select a 2007 Grand Sport Series

(2014 - 2002)


Columbia Series

M-340 450hp

M-340 Diesel

M-360 450hp

M-360 Diesel

M-370 450hp

M-370 Diesel

M-400 450hp

M-400 Diesel

M-420 450hp

M-420 Diesel

M-450 450hp

M-450 Diesel

Columbia Toy Haul Series



M-419 Diesel

M-459 Diesel


M2 Series

M-320 300hp

M-340 300hp

M-350 300hp

M-380 300hp

Founded in 1997, Dynamax began producing the Grand Sport line of motorhomes in 2002. Building large Class A and Class C motorhomes on transport truck frames, Grand Sport caters to luxury as well as toy hauler customers in the recreational vehicle market. Multiple floor plans for Grand Sport recreational products have been made available between 32 and 45 feet in length. Air conditioning, LCD television and a finely equipped kitchen were features of Grand Sport motorhomes.