What is it? Quiz #487

This beautiful racing car is a De Coucy from 1926. At least two of these single seater cars were built by Count Enguerrand de Coucy. The engines were advanced - twin overhead cam straight eights of 1100cc and 1243cc (rotating anti clockwise), when supercharged they were reputed to produce over 100hp per litre at 9000 rpm.
De Coucy's were entered into, but did not compete, two races at Monthlèry, the 1927 Coupe de la Commission Sportive and the 1931 French Grand Prix, (as a Demo-De-Coucy).
In 1932 a De Coucy set a speed record at Montlhéry driven by Lucien Clement.

Sources:
http://www.racingsportscars.com/report/De_Coucy-2013-05-history.html
http://mini.43.free.fr/decoucy.html
http://www.formula1results.co.za/19261949/1927cs.htm
http://www.kolumbus.fi/leif.snellman/gp3107.htm
https://www.jalopyjournal.com/forum/threads/lets-talk-cyclecars.226791/page-218
The Encyclopedia of Motor Sport. G.N.Georgano 1971

It is a de Coucy! Enguerrand de Coucy was a Flying Officer during the Kaiser War.He was a great Engineer and designer.He starteted his career with Doutre in 1912.In 1921 he designed on his own light car fitted with a 1100cc ohv engine which he claimed to rev at 5555rpm.In 1927 de Coucy designed his first racing car with an eight cylinder monobloc dohc engine 51 x 67 mm ( 1100cc) which surprisingly enough rotated anticlockwise!!This little car was nicely made with a tubular front axle and four brakes actuated by cables instead of usual but heavier Perrot - Piganeau system.The tulip shaped radiator was quite an archievement in 1925.As an artist ,de Coucy could only build a nice and narrow chassis with external springing.The frame was underslang at the rear and aluminium was used. De Coucy's were in competition with Amilcar,Rally and Salmson.
Two or three were ever made.