General Motors Corp.'s Pontiac Div. will produce the Bonneville G/XP show car unveiled at the Chicago Auto Show. The G/XP was developed by Pontiac's design team within the last four months, and plans call for sales of between 5,000 and 15,000 units annually when it goes on sale in early '03.

It will be marketed as a limited-production high-performance version of Pontiac's fullsize Bonneville sedan, which has seen sales fall recently. The G/XP features a clean exterior design, with little body cladding for a smoother, flowing appearance. The front and rear fascias have been modified to build on the revised look. GM Vice Chairman Bob Lutz says he sped up plans to build the G/XP once he viewed the model shortly after he joined GM late last year.