MILAN (Reuters) - Italy will offer subsidies of up to 6,000 euros (£5,391.3) to buyers of new low emission vehicles while slapping taxes on the purchase of larger petrol and diesel cars, according to measures approved in parliament.The measures, contained in Italy's 2019 budget passed by the upper house on Sunday, made changes to rules proposed by Rome earlier this month which drew criticism from the car industry.Unions and auto sector associations have warned about the proposed new tax, saying..