Following on the success of the K7s in Interserie use, Kremer saw the opportunity to adapt their design to the new open-cockpit configurations that were allowed in the IMSA GT Championship and at the 24 Hours of Le Mans. Once again, the 962CK6s were used as a base, although some styling elements were changed between the CK7 and the new K8 Spyder in order to conform to the rules used in these events. The K8s would be required to maintain their two-seater layout as had been used on the 962CK6s. Also, to meet engine requirements, Kremer chose to use a smaller variant of the Type-935 Flat-6, running only a 3.0 litre displacement. Four K8 Spyders were built by Kremer.