HGV and van fleet operators will be able to try a new telematics system for free as part of a six-month trial starting in December.

Developed by Tracker, part of the Tantalum Corporation, the Air.Car system will provide real-time NOx emissions data.

The trial received a £1m grant from Innovate UK and will see Imperial College London develop and verify the technology involved.

Businesses interested in taking part can register online.