I AM unimpressed at the exhibition of environmental concern by car owners who feel aggrieved their German cars’ computers have been programmed to always indicate that emissions standards are being met.

Like most drivers, as long as my vehicle passes the MOT, I don’t care what emerges from the exhaust pipe. If I gave a fig about the environment, I’d have bought a bicycle!

JOHN EOIN DOUGLAS Spey Terrace, Edinburgh