Isringhausen Motorsports is the motorsports division of Isringhausen Porsche, an established dealership based in Springfield, Illinois. Since 1981, the wider Isringhausen organization has represented Porsche, BMW, Mercedes-Benz, and Volvo, earning industry awards and serving customers nationwide. Isringhausen Motorsports brings that automotive experience to track racing, with a presence at Porsche Club of America Club Racing events and a team that races the cars it sells.

The business stocks and sells factory-built and prepared race cars, including Porsche 911 GT3 Cup models, GT3 R race cars, GT4 Clubsports, Cayman models, and GT2 RS Clubsports. Its inventory also features race cars from BMW and Ferrari, along with hypercars. Customers can browse track cars for sale, request guidance on choosing a car to match their experience and ambitions, and trade in Porsche race cars or virtually any street car. Isringhausen also offers a trade valuation service, shares motorsports news, and provides contact and newsletter options. Based in Springfield, the dealership can ship vehicles nationwide using its own covered transports.