The government will announce new measures today which will see driverless cars on the streets of Britain in 2015.
Business Secretary Vince Cable will later confirm that the first trials of the self-driving vehicles will start in January next year.
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The Labour politicians put their alleged differences aside to jointly highlight how remaining in the EU could help fight climate change.
Late sunshine here and there this evening - but more cloud for southern Scotland, northern England and Northern Ireland again.
Pro-Leave campaigner Boris Johnson has responded in a politely worded letter to Jean-Claude Juncker's invitation to "come back to Brussels".