What Car? Q&A - Introduction

This week your questions, unsurprisingly, have turned to fuel economy. We also discuss the new BMW X5, how to get rid of a car being financed on a PCP, and whether the end of summer is a good time to buy a roadster.

Click here to submit a question to the Q&A team. We publish a selection of your questions – along with What Car?'s answers – here every week.

You can also turn to the What Car? Helpdesk with motoring problems or disputes you might be having. Click here to e-mail the Helpdesk.

Don't forget that you can also browse through a hoard of other queries in our earlier Q&A features, and submit your own questions by clicking here.