My daughter recently started a new job in South London and rather then stay up there she wishes to commute. As we live in Southampton the commute is a 150-mile round trip per day, 5 days per week. She is currently driving my wife's 1.2 1998 Clio and this seams to be doing 42 mpg but she is keen to get her own car now, preferably a small frugal diesel to bring down the daily cost to below the current cost of £16 per day? She would like a small 5 door, no bigger then her mum’s current Clio, she has no deposit and would like to spend no more the £5k, this would be funded by a bank loan or she may consider HP if the deal was right. What is you opinion on the diesel Citroen C3 and the Ford Fiesta and they both seam to be good on mileage and reasonable running costs? Or could you recommend another option?