British vehicles will emit extra 17m tonnes of CO2 by 2030 due to loophole allowing sale of more PHEVs, data suggests British vehicles will emit extra 17m tonnes of CO2 by 2030 due to loophole allowing sale of more PHEVs, data suggests Campaigners have urged the government to resist calls to further water down electric car sale rules, as an analysis reveals that vehicles on UK roads will emit an extra 17m tonnes of carbon dioxide by 2030 mostly because of changes last year. Parts of the car