The Lincoln MKT, based on the Ford Flex, is a long-time favourite of limousine and taxi companies. Its ability to accommodate seven people in living-room-worthy comfort and its silent ride make it a natural for fit for that role. It's powered by a twin-turbo, 3.5-litre V6 linked to all four wheels by way of a six-speed automatic gearbox. The MKT can tow up to 4500 pounds (or 2041 kg).