There has been a government subsidised project in Japan where taxi companies were subsidised for using Nissan Leaf's as taxi. The program lasted two years. After the program ended the taxi companies quickly reverted back to regular cars as they were rather dissatisfied with those electrical cars. Insufficient driving range, deterioration of batteries, long charging times and some other reasons were mentioned at the time. Besides regular cars are also hybrid cars (e.g. Prius) rather popular among taxi companies in Japan.