Kremer CK7 Spyder

The Kremer K8 Spyder, along with its predecessor, the CK7, were open-cockpit prototypes built by Kremer Racing for use in multiple sportscar series, such as the IMSA GT Championship, Interserie, and International Sports Racing Series. The cars shared many components from the retired Porsche 962 and would eventually go on to win the 24 Hours of Daytona and several championships.

During 1992, Kremer Racing had abandoned the World Sportscar Championship due to heavy costs brought on by the new engine formula which had gone into effect in 1991. The racing company therefore turned to the smaller Interserie championship, which continued to allow Kremer's 962CK6s to compete alongside a wide variety of machinery. However, teams in the Interserie at the time were opting more and more for open-cockpit Formula One or CART-based machines with bodywork attached to them for more downforce. This left the closed-cockpit prototypes like the 962CK6 at a disadvantage due to their heavier weight. Kremer Racing, as well as other teams in the series, chose to therefore turn their coupes into open-cockpit cars in an attempt to lower weight and increase speed.

Kremer initially took one of their existing 962CK6s and began extensive modifications to the bodywork. The roof and windshield of the cockpit was removed, while the doors were replaced with new bodywork to surround the open cockpit. This bolstering of the side bodywork moved the driver to a more central position, similar to an open-wheel formula car. Because of the elimination of the doors, the large intakes on either side of the cockpit were also reshaped, with a large cut made to allow air to flow in from the side of the car.

The engine cover was retained in order to give the driver rollover protection as well as to maintain some of the 962CK6's original aerodynamics. Underneath the bodywork, most of the mechanicals of the 962 were retained, including the Type-935 3.2 litre Flat-6 engine. These cars became known as the CK7 Spyder, with at least two built specifically for Interserie use.

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