Exclusive: On-the-road fuel efficiency is far lower than in lab tests,pushing up costs and CO2 emissions, research showsDrivers in Europe have paid €150bn more on fuel than they would have whether their vehicles had performed as well on-the-road as in official laboratory-based tests, or according to a new report.
Car companies have legally gamed official tests of fuel economy for many years by,for example, using very hard tyres during tests or taking out equipment to acquire cars lighter. The gap between test and actual performance has soared from 9% in 2000 to 42% nowadays. Related: How conniving carmakers caused the diesel air pollution crisis Continue reading...
Source: theguardian.com