PEUGEOT is developing the technology to remove particulates from diesel emissions to overcome the environmental questions surrounding the fuel. Particulates are now believed to be one of the most dangerous vehicle emissions, blamed for major increases in respiratory diseases in urban areas.

This has prompted a number of interested parties to experiment with particulate filters, and a number of commercial vehicles are already using Royston-based Johnson Matthey's CRT (continuously regenerating trap). This has been fitted to large trucks and buses, and Peugeot is working on a device to deliver similar results in cars and small vans.

The French manufacturer, which is the UK's leading diesel maker, will announce the success or failure of its exhaust developments next year, and either way is convinced of the long term future for diesel. Frederic Saint-Geours, director general of Peugeot, said: 'We are working on a particulate filter, and we will be able to say in 1999 when we can introduce it as a commercial offering.'