Q:Information:  - GTM Cars is a component kit car manufacturer located in Kingswinford, UK.  - A kit car, also known as a component car, is an automobile that is available as a set of parts that a manufacturer sells and the buyer then assembles into a functioning car. Usually, many of the major mechanical systems such as the engine and transmission are sourced from donor vehicles or purchased new from other vendors. Kits vary in completeness, consisting of as little as a book of plans, or as much as a complete set with all components included.  - An engine or motor is a machine designed to convert one form of energy into mechanical energy. Heat engines burn a fuel to create heat, which then creates a force. Electric motors convert electrical energy into mechanical motion; pneumatic motors use compressed air and clockwork motors in wind-up toys use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and eventually motion.  - Kingswinford is a suburban area of the Metropolitan Borough of Dudley, in the West Midlands, England. In 2001, its population was 25,808, falling to 25,191 at the 2011 Census.  - The GTM K3 or Rossa K3 is a Metro based 2 kit car by GTM Cars The car was based on two front Rover Metro subframes , with the steering being locked on the rear subframe , these were fitted to a fibreglass monocoque tub . Coupé or convertible bodywork could be specified .    After reading the paragraphs above, choose the best answer for the entity that related to 'gtm k3' with the relationship of 'subclass of'.  Choices: - area  - automobile  - book  - borough  - burn  - energy  - engine  - england  - heat  - kit  - machine  - population  - wind
A:
automobile