Hidden petrol cost of hybrid cars ‘exposed’
MOTORISTS may be paying hundreds of pounds more than hoped in fuel for plug-in hybrid cars due to “unrealistic” efficiency claims, a watchdog says.
Which? tested 22 popular models and all fell short of makers’ figures.
The group said its tests were tougher than official assessments, to better represent real-life driving conditions.
BMW’s X5 plug-in hybrid was reportedly 72 per cent less efficient than official figures – which could cost £669 more a year in fuel.The firm said it could return 188.3mpg but Which? tests showed it did 52.8mpg.
Which? said BMW’s 2 Series Active Tourer was 71 per cent less efficient than claimed, potentially costing drivers an extra £772 a year. BMW said the petrol/electric vehicle could manage 156.9mpg but it returned 44.8mpg.
The Toyota Prius was “best” on test at 39 per cent less fuel-efficient than official figures. Owners hoping to pay £257 a year based on Toyota’s claims would likely spend £429, said Which?
The Daily Express’s Green Britain Needs You crusade is calling for incentives to help people to go green, including tax cuts to make ultra-low emission cars, such as electric or hybrid ones, more affordable.
Natalie Hitchins, of Which?, said hybrids were not as efficient as claimed: “The standard set for calculating fuel consumption is flawed and should be reviewed to better reflect real-life driving. This would ensure manufacturers advertise more accurate figures and consumers have a better understanding of how much they should expect to spend on fuel.”
The Vehicle Certification Agency said fuel consumption in real-world driving is influenced by many factors. For a plug-in hybrid electric vehicle (PHEV) this includes the ability to switch engine modes.
BMW said the legally required tests are standardised ways of comparing vehicle efficiency: “PHEV technology, when the vehicles are charged regularly as intended, can save significant fuel consumption and emissions.”