Business Green: The UK government last week made a rare exception to its spending review process, otherwise scheduled to conclude in October, by confirming grants for the purchase of electric cars would go ahead. The grants contribute 25 per cent towards the purchase of battery electric cars or plug-in hybrids, up to a maximum of £5,000 per car. In total £43m has been allocated — sufficient for an initial 8,600 cars — starting in January 2011 and running until the end of March 2012, with a review …