The SMMT is urging government to allocate the 24GHz ultra-wide short wave radio frequency for use by manufacturers as soon as possible, to use with collision warning sensors.

Manufacturers in the UK and across Europe have already developed collision warning systems that rely on 24GHz, but their introduction has been delayed by the Radio Communications Agency (RCA), which believes there are possible interference issues with current users, including radio astronomers and radio hams.

The SMMT points out that US Federal bodies have already reviewed interference and compatibility issues and given their approval for automotive radar use.