The Funky Cat First Edition by Chinese manufacturer Ora had the biggest discrepancy between the actual and official range of the cars analysed. It did just 130 miles before stopping, some 33% below the stated figure of 193 miles. Renault’s Megane E-Tech had the second largest difference at 32%. The car that got closest to its advertised range was the Nissan Ariya, with a discrepancy of just 16%. The Tesla Model Y was in second place at 18%.