Q To get to my new job I have to drive through 10 miles of stop-start traffic each way. I therefore need to swap my audi a4 convertible for something more economical, with low carbon emissions. It needs to have boot space for a set of golf clubs or two and be child friendly as I plan to start a family soon. I have looked at the Honda CR-Z hybrid and the Volkswagen Golf BlueMotion, but am concerned about the boot space. My budget is ?15,000-?25,000.  SB, Epsom, Surrey  a With such a low daily mileage you could consider an electric car, such as the Nissan Leaf, which, after allowing for a government incentive payment of ?5,000, comes in at ?25,990 and has a potential range of 109 miles on a single charge (although much less if you accelerate hard and drive at high speeds). It has 330-litre boot.