*Petrol annual cost based on 10,000 miles at £1.41/litre. Electric annual cost based on 10,000 miles charging on a flat rate tariff costing £0.27p/kWh. Off-peak tariff based on Octopus Intelligent Go’s time-of-use pricing at 7.5p/kWh. Pricing of tariffs varies by region. Costs shown do not include any additional charges (such as standing charge) or discounts. Assuming 25% of your car battery is charged with solar. Cost projections exclude any export payments. These calculations are based on the manufacturer’s NEDC figures. Your mileage and performance may vary based on the weather, your driving style and type of route driven.