Complex sentence: The race course is a prime destination for Formula One teams who wish to perform off-season testing and hosted the Spanish Formula One Grand Prix between 1986 and 1990 before the race moved permanently to the Catalunya Circuit near Barcelona.
Split into simpler sentences: The race course is also a prime destination for Formula One teams wishing to perform off-season testing. In the past it has hosted the Spanish Formula One Grand Prix between 1986 and 1990, before the race moved permanently to the Catalunya Circuit near Barcelona.