General Motors is planning to build a small sports car based on the design previewed by the Saab Aero-X Concept, according to a report in the latest issue of AutoExpress magazine. According to the report, coupe and roadster versions will be offered, each aimed squarely at the 2007/2008 Audi TT. Shown right is a scan of the magazine's cover, showing an artist's rendering of how such a car might look (we're looking for a better image). The report describes the new car -- due as a 2009 model -- as the Aero-X distilled "distilled into a smaller, Audi TT-rivalling sports coupe." The production coupe will even get a wraparound windscreen, the report says. We suspect, however, that this will involved painted black A-pillars, rather than a true wrap-around window. Of course, the production car will trade its canopy roof for standard side-opening doors.