The Jaguar XJ6 car will be that much better built and more reliable thanks to 775 test systems supplied to the Coventry, West Midlands company by GenRad Inc, Concord, Massachusetts: the $13m contract for diagnostic and fault location systems for the XJ6 resulted from a joint development between Jaguar and GenRad’s Cirrus Designs Ltd in Manchester; the custom-built Jaguar Diagnostic System is based on an enhanced version of the 2610 portable test system and the XJ6 has seven microcomputer modules to be checked out – to control timing and logic; engine management; instrument panel; air conditioning; cruise control; and anti-lock braking