--- title: Porsche 917 K-81 (1981) · HICONIUM description: "Porsche 917 K-81 (1981). Kremer’s works-blessed resurrection for the 1981 Group 6 rules — the last 917 ever built, and the last to race Le Mans." canonical_url: https://hiconium.com/vehicles/porsche/917/k81 --- > HICONIUM · Index: https://hiconium.com/llms.txt · Every page: append `.md` or send `Accept: text/markdown`. > Path: [Home](https://hiconium.com/) › [Vehicles](https://hiconium.com/vehicles) › [Porsche](https://hiconium.com/vehicles/porsche) › [917](https://hiconium.com/vehicles/porsche/917) › Porsche 917 K-81 (1981) [Porsche 917 — the model file](https://hiconium.com/vehicles/porsche/917) # 917 K-81 1981 · Unique · 1 built Indicative value €2.6M from documented context — not a blended market price ![The Kremer 917 K-81 in yellow Malardeau livery at Rétromobile](https://hiconium.com/_derived/images/cars/porsche-917/art/malardeau.jpg.w1920.q75.webp) The execution Kremer’s works-blessed resurrection for the 1981 Group 6 rules — the last 917 ever built, and the last to race Le Mans. Built in Cologne from factory drawings, with two works Type 912 engines and an aluminium spaceframe stiffened by extra triangulation. Bob Wollek ran as high as ninth at Le Mans 1981 before retirement after seven hours; at Brands Hatch it led before failing. The one 917 whose whole life is post-period. On the record - Le Mans 1981 — Wollek/Lapeyre/Chasseuil, out after 7 hours - Led the Brands Hatch 1000 km before retiring - €2.65M at Monaco 2024, against a €3.5–5M estimate As separated Years 1981 Built 1 Engine 4.5/5.0L flat-12 Power ~600 PS Against the 917 K Years 1981 · 917 K 1969–1971 Built 1 · 917 K 36 Engine 4.5/5.0L flat-12 · 917 K 4.5–5.0L flat-12 · Type 912 Power ~600 PS · 917 K 580–630 PS The documents ![The Kremer 917 K-81 at Rétromobile, 2023](https://hiconium.com/_derived/images/cars/porsche-917/kremer-k81.jpg.w1920.q75.webp) [All 917 executions](https://hiconium.com/vehicles/porsche/917#variants)