Barcelona is the spiritual home for MotoGP. Though Dorna’s official head office is in Madrid, that is a relatively pokey affair where the executive board meets, supported by a small group of administrative staff. The vast majority of Dorna staff, along with the entire operational side of MotoGP, is based in Sant Just Desvern, on the western outskirts of the Catalonian capital. The working language for most of MotoGP is Catalan rather than Castilian Spanish.
That Barcelona is the home of MotoGP makes sense given that the city and its surrounding regions have been at the heart of motorcycling in Spain for the better part of a century. Bultaco, founded by Don Paco Bultó, grandfather of Sete Gibernau, was based just outside Barcelona, as was Montesa. That continues to this day, with electric motocross bike manufacturer Stark based in Barcelona.
