Every week a Guardian Money reader submits a question, and it’s up to you to help him or her out – a selection of the best answers will appear in next Saturday’s paper.

This week’s question:

After a series of bad car purchases I’m after some advice. I need a reliable used petrol car with enough room for a family of four – ideally for £2,000 or less. Performance and looks are of no interest – it just needs to be reliable and well built. What would you buy?

Do you have a problem readers could solve? Email your suggestions to money@theguardian.com or write to us at Money, The Guardian, Kings Place, 90 York Way, London N1 9GU