Drivers could be tracked by satellite & taxed on miles driven says DfT's Darling

"Top-of-the-range cars have got satellite navigation kits fitted almost as standard now,' Darling said. 'In another 10 years I expect every car will be fitted with this equipment. So it makes sense to see whether or not you can't use that to good advantage and give drivers a better deal."

Darling is expected to detail government plans on road pricing at a Social Market Foundation event. Darling is expected to present a bill in the current parliament to set up a pilot project.