Citroen C1, Peugeot 107 or Toyota Aygo. All basically the same car, but lowest for insurance, CO2 and general running costs. Insurance may be a problem. For Northumberland, NFU Mutual might be best. Government needs to intervene over the high cost of young peoples insurance where premiums of £2,000 - £5,000 are leading 30% of kids to drive uninsured. If a maximum premium of £1,000pa for cars up to Insurance Group 3 was imposed, then the ‘cost’ to other drivers would not be any greater than the amount they bear from 30% of kids driving uninsured.