IMSA GTO Buick Somserset

In the real world the Somerset was a mediocre luxury sedan. However, General Motors decided to enter it in the IMSA GT Championship with an aftermarket high displacement, high-performance engine in the GTO category. This entrant proved to be a success and one of the more memorable IMSA GTO and Trans Am competitors of the early nineties. I specifically want the Performance Motorsports Buick as I like the livery.