The Nissan Leaf is the world’s best-selling electric car, and it’s not hard to see why. Offered with either a 40kWh battery for a 168-mile official range or a 62kWh battery for a 239-mile range, it seems there’s a version of the likeable and easy-going Leaf to suit every buyer, from the budget-conscious to the high-mileage luxury-seeker.   We’ve driven both, and consistently achieved 160 miles or more in the 40kWh model that we lived with for six months, while our time in a Leaf e+ suggested 210 miles is easily achievable in varied driving.   The e+ isn’t only about longer range, either. It also gets faster charging, with the CHAdeMOport in its nose capable of charging the car at 100kW, delivering a 10-80% top-up (around 130 additional miles of range) in 35 minutes.