The thinking behind PHEVs is that drivers can count on the best of both worlds. The car uses a petrol or diesel engine combined with battery-powered electric motors that can be charged through a plug. The electric motors help to push the car along which saves you money on petrol. You can also enjoy the tax benefits and improved fuel economy that comes with owning a PHEV without giving up the reliability of a fuel tank.
If you think a conventional hybrid car might better suit your lifestyle instead of a PHEV, we've created a separate list of our favourite used hybrid cars here.