Mazda thinks London congestion charge could help sales of small diesels

The proposed changes to the London congestion charge that would change it from a fixed charge to one based on emissions could prove a boon to small diesel engined cars, and Mazda like that possibility. Mazda had been projecting that only ten percent of buyers for the new Mazda2 would select the 1.4L diesel. However if the new changes occur, cars that emit less than 120g/km of CO2 would be exempt from the charges while bigger, thirstier machines could end up paying as much as £25 per day (up from the current fee of £8 per day). So far, aside from some electric "quadricycles" like the Reva G-Wiz, only small diesel cars like the Smart ForTwo, and VW Polo BlueMotion meet that standard. The new Mazda2 would also meet the threshold.

[Source: What Car]