A boy-racer has been jailed after crashing and flipping his car at 110mph - killing his girlfriend.<br /><br />Nick Tay, 25, was speeding down a dual-carriageway at more than double the limit when he veered across two lanes, hit the central reservation and bounced off towards a verge.<br /><br />The crash, which happened on the A3 near Tolworth, south west London, killed 24-year-old Maria Jimenez Montero.
