This should be accurate, used it when researching mine offering an extra 80mm in length and 110mm in width http://www.super7cars.com/Super7_RoadsportSV_Caterham.html http://www.super7cars.com/Super7_RoadsportSV_Caterham.html Poss the dimensions are: -Length - 3380mm -Width - 1575mm -Length SV - 3530mm -Width SV - 1685mm http://www.pistonheads.com/gassing/topic.asp?t=929801 http://www.pistonheads.com/gassing/topic.asp?t=929801