Switching from a petrol or diesel car to an EV is a big change, and there are a lot of questions you need to ask yourself before buying one. Which? experts explain the pros and cons of electric cars.

Bluetooth car kits let you talk hand-free while driving. Consumer Reports checked out GoGroove FlexSmart X2, Belkin CarAudio Connect AUX, Jabra Journey and Motorola Roadster 2.