There were two versions of the Dufour 40e sailboat produced: the Dufour 40e Performance and the Dufour 40e Grand Prix. They differ in some aspects of their design, equipment, and performance.
The Dufour 40e Performance is the standard version of the boat, designed for both racing and cruising. It has a fractional sloop rig with a keel-stepped mast, double swept-back spreaders, and a below-decks furler. It has a bulb fin keel and a spade rudder. It has a Volvo 40 hp engine and a fuel capacity of 58 gallons (220 liters). It has a choice of three layouts with two or three staterooms and one or two head/shower compartments. It has a spacious and bright saloon, with plenty of hatches, portlights, and hull windows. It has a generous galley, with ample storage and counter space.
The Dufour 40e Grand Prix is a more performance-oriented version of the boat, designed for competitive racing. It has a carbon mast and boom, rod rigging, and a hydraulic backstay adjuster. It has a deeper keel and a lighter ballast. It has a Volvo 55 hp engine and a fuel capacity of 42 gallons (160 litres). It has a two-stateroom layout with one head/shower compartment. It has a more minimalist interior, with less furniture and more carbon fibre accents. It has fewer hatches, portlights, and hull windows. It has a smaller galley, with less storage and counter space.
The Dufour 40e Grand Prix is faster, more manoeuvrable, and more responsive than the Dufour 40e Performance, but it is also more expensive, more demanding, and less comfortable. The choice between the two versions depends on the preferences and needs of the owner.