These figures are Fords own for the Lambda and catalyst equipped 93 Sapphire. (The most fuel efficient saff ever made)

Urban Cycle:
22.1 mpg

Constant 56mph:
37.2

Constant 75mph:
30.4mpg.

Anyone got a 3dr or early sapphire manual as thesefigures are more realistic for someone having a conversion that didnt have lambda fitted originally, like Rob's 3dr.