No answers - just a munge. We've got a Fiat Punto. A Fiat Punto generally gives 47 miles per gallon. A Ford Fiesta 1100 generally gives 36 mpg. The Prescott gave cheaper road tax to cars below 1100cc, eg. the Fiesta . The Punto we had was 1108cc. We bought a new Punto just as the engine size limit for cheaper road tax was increased - and found that the new car was 8cc over the new limit, but lots more Fiestas were included! Is Mr Prescott trying to compensate people with greedy little cars? I'm not just picking on Ford, but the engine size limits have certainly benefitted many owners of small Fords - and the Escorts,etc eat more than the Fiestas. The real measure would be the fuel consumption, not the engine size - and it's the DOT that makes the manufacturers publish fuel figures!