At the 2003 North American International Auto Show in downtown Detroit, Cadillac unveiled its Sixteen concept car, so named because of a V-16 engine created in homage to the famed V-16 models of 1930 and 1931.
At least three new 1,000-horsepower V-16 engines were produced as part of the concept car program, one simply for show, but two to go. One of those drove the concept car, the other reportedly went into a specially built, long-nose sport utility vehicle. Though designed at GM, the engines were built by Katech, a Clinton Township-based company that specialized in producing high-performance engines for auto racing teams, including those that raced at Indy and at Le Mans.
Read more at The Detroit News.