The unfinished D-Types are converted to the XKSS model for road use. The destruction of 9 chassis in February 1957 in the fire of the Coventry production line further increases the difficulties of Jaguar to position itself. However the private teams Ecurie Ecosse and Cunningham continue to win important competitions with their D-Type cars.
Lister was created in Cambridge in 1954 with the specialty of lightening the chassis and improving the aerodynamics of existing models from other brands. A first Lister-Jaguar series is made in 1957. In 1958 a new Lister-Jaguar now prepared with the participation of Jaguar receives the nickname Knobbly for the shape of its body exaggerating the bulging of the D-Type.
The D-Type obsolescence is not acceptable to Cunningham because the US rules had not followed the volume limitations applied in Europe.
Cunningham manages to buy the first two Knobbly that Lister originally wanted to supply to Ecurie Ecosse. These two cars will win many competitions from the SCCA (Sports Car Club of America). Seven other Lister-Jaguar Knobbly will complete this series. The unreliability of the Jaguar 3-liter engine causes Lister to develop a new 3.8-liter engine for the Knobbly.
The first Knobbly of the Cunningham team was sold for € 1,18M including premium by RM Sotheby's on May 10, 2014. The second Knobbly ex Cunningham is for sale by Mecum in Monterey on August 18, lot F75. Please watch the video shared by Mecum.