SEAT today is the only major Spanish car manufacturer with the  ability and the infrastructures to develop its own cars in-house [10].
 Its headquarters and main manufacturing facilities are  located in Martorell, an industrial town located some 30  kilometres north-west of Barcelona  [11],  with a production capacity of around 500,000 units per annum [12].  The plant was opened by King Juan Carlos of Spain on February 22, 1993,  and replaced SEAT's former assembly plant by the coast in Barcelona's freeport zone. A rail transport between  SEAT's Martorell complex and Zona Franca facility makes the connection  with the port of Barcelona in the aim of vehicle and spare parts  transportation [13].
 The industrial complex in Martorell also hosts the facilities of SEAT  Sport [14],  SEAT's Technical Center, Research and Development Center  (R&D) [15],  Design Center [16],  Prototypes Centre of Development [17],  SEAT Service Center (also incorporating the After-Sales Service  division, the Customer Services division and the Catalunya Motor  dealership) [18],  as well as the Genuine Parts Centre for SEAT, Volkswagen, Audi  and Škoda brands [19].  The development and assembly facilities are some of the newest and most  modern within the Volkswagen Group, giving the owned by SEAT Martorell site the  ability, in terms of efficiency and high-quality [20],  to produce cars not only for its own range but also for other  Volkswagen Group brands, such as Volkswagen  and Audi  marques [21].  For example, the development and design of the Audi Q7  took place there, and from 2011 onwards the Martorell plant shall take  over the production of the upcoming Audi Q3  small SUV [22].