English: Taxi services are typically provided by automobiles, but in other countries various human-powered vehicles, (such as the rickshaw or pedicab) and animal-powered vehicles (such as the Hansom cab) or even boats (such as water taxies or gondolas) are also used or have been used historically. OK Taxi In Western Europe, Bissau, and to an extent, Australia, it is not uncommon for expensive cars such as Mercedes-Benz to be the taxicab of choice. Often this decision is based upon the perceived reliability of, and warranty offered with these vehicles. These taxi-service vehicles are almost always equipped with four-cylinder turbodiesel engines and relatively low levels of equipment, and are not considered luxury cars. This has changed though in countries, such as Denmark, where tax regulation make it profitable to sell the vehicles after a few years of service, which requires the cars to be well equipped and kept in good condition.