The BX 4TC EVOLUTION 


Citroen build 20 of these Evolution BX 4TC's in the Citroen Competition workshop at Trappes. Technical father Guy Verrier developed this car using only Citroen parts, elements and mechanics. The car however would only compete in 15 rally's, of which only 3 where FISA world championship rally's (Monte Carlo, Portugal and the Acropolis Rally), it abandoned in 13 rally's. Terrible accidents and cars that were getting uncontrolable on a rally track forced the FISA to abort the Group B rally's by the start of the 1987 season. Click here to read all about the Group B cars and the tragedy Citroen entered in.

Wearing their official jackets, the two drivers Jean-Claude Andruet and Phillipe Wambergue. Jean-Claude Andruet was an established name in motorsport; twice champion of France and once of Europe, ex official driver for Renault, Alfa Romeo and Fiat. Andruet was hired to show off the BX 4TC's potential. Phillipe Wambergue was the younger one of the two, but had a great deal of experience since he started his carreer in 1971 with a DS prototype. Since 1981 he had been an official Citroen test driver and had participated in the development of the different Visa's (Trophy's and 1000 Pistes) and ofcourse that of the BX 4TC. His job was to "prove the reliability and ensure good results"
The 4TC EVO  has basicly the same engine as the 4TC, only difference's are the turbo-compressor (KKK type K26). Maximum of 8000 rpm, maximum power of 380 bhp and 7000 rpm for 1300 millibars of supercharging. Maximum torque 46 mkg at 5500 rpm. 

With the exeption of two models which were saved (in the Citroen and Hommel collections) the 18 others should have been destroyed. However at least three bodyshells managed to escape the hands of the brakers. Two of them were recovered by amateur driver P. Pivert who after great efforts was able to rebuild one Evolution model in 1989. This car was destroyed in a violent crash, remainings of this car were used to build up the second bodyshell, which should still be alive. The third bodyshell was for sale (very discreetly) in a garage in the Paris area in 1992.

One of the very few pictures from the Citroën collection in some very secret hall closed for public. Citroën seems to have kept atleast 1 BX 16valve touring, 1 BX 4TC EVO and 1 'ordinary' BX 4TC. You can take another look at this exceptional collection of citroëns by clicking here.

 

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