Pontiac Solstice Coupe, 2009
The making of a coupe
It is a modern sports car with classic lines. The roofline has a "fastback" shape with stylized "rails" that run from the front of the roof to the rear, culminating in a stylish and functional ducktail-style rear spoiler.
The coupe's roof is fixed aft of the B-pillars, with side windows and a rear liftglass for access to the cargo area. The roof panel is easily removed from the passenger compartment, and an optional soft roof cover stores in the cargo area.
The Engineering the design
Despite its dramatic new look, engineers made only minor structural changes to create the Pontiac Solstice coupe. The rear fenders and rear fascia are the same as those on the convertible. New taillight assemblies flow more smoothly into the tapered roofline.
The sleek lines of the new roof give the car a fresh appearance, only minimal changes were made to the body structure - it's a great example of building on an already solid foundation.
The Lightweight structure
The roof's structure was strengthened with additional support elements, including an aluminum roof bow attached with aluminum brackets. The bow and brackets are stiff, low in mass, a design feature that pervades the coupe's overall construction. The roof includes a lightweight sheet molding compound cover affixed to a rigid aluminum frame for additional lightweight support. A lightweight magnesium roof panel frame weighs just 31 pounds (14.2 kg) and can be removed by one person. The cover is also made of sheet molding compound.
The Interior additions
The coupe's interior remains the same as that of the convertible. However, the area behind the seats was redesigned for easy access to the cargo area, and a storage tray was mounted directly behind the headrests.
Removing the folding-top mechanism made way for a new, flat cargo floor and several storage compartments. The cargo area's covered bins provide secure storage for smaller items. Cargo tie-down hooks help secure irregularly shaped items.
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