When the Circuit de Catalunya debuted on the Formula One calendar in 1991, its final sector comprised a series of fast sweeping right-handers that drivers could carry at high speed before the pit straight. The combination of this demanding final sequence with the circuit's long front straight and technically varied first and second sectors made Barcelona a comprehensive test of a car's aerodynamic balance, mechanical grip, and tyre management.
Because so much Formula One winter testing took place at the circuit, drivers and engineers became extremely familiar with its characteristics. This depth of knowledge made it one of the most thoroughly understood tracks on the calendar, which in turn was often cited as reducing on-track action during race weekends — teams arrived already knowing how to optimize their cars for the conditions.
Overtaking was relatively frequent in the circuit's early years. Cars could follow each other through the final fast corners and use the slipstream down the front straight. As aerodynamic complexity increased through the 1990s and early 2000s, the turbulence generated by a leading car through the final sweepers made it progressively harder for a following car to stay close, limiting overtaking opportunities.
Several of the most celebrated moments in modern Formula One history occurred at Barcelona under the pre-chicane configuration. In 1991, Ayrton Senna and Nigel Mansell drove wheel-to-wheel down the entire pit straight while disputing second place, with Mansell ultimately taking the position and going on to win. In 1994, Michael Schumacher drove over half the race distance with only fifth gear functioning yet still finished second. In 1996, Schumacher scored his first victory as a Ferrari driver in dominant fashion through a rainstorm. In 2001, Mika Häkkinen suffered a clutch failure while leading on the final lap, handing victory to Schumacher.
In 2006, Fernando Alonso became the first Spanish Formula One driver to win at his home circuit. That same year Max Verstappen won his first Grand Prix at Barcelona in 2016 — at a time when the modified final sector was already in place, though the sweeping back section remained a defining part of the lap.
For the 2007 season, the first of the two fast final sweeping corners was replaced with a slow chicane. The stated aims were to reduce speeds through an area where serious accidents could occur and to improve overtaking. The chicane was broadly criticized for failing to achieve the latter goal and for creating congestion during qualifying. Formula One used the chicane configuration through the 2022 Spanish Grand Prix.
Ahead of the 2023 Formula One season, the circuit restored the faster final-sector configuration that MotoGP had adopted following updates in 2021. The restored layout — removing the chicane and returning to sweeping fast corners, albeit in a form slightly different from the original — represented a partial return to the pre-2007 character of the circuit's final sector.
The Circuit de Catalunya has hosted a motorcycle Grand Prix since 1992. For many years MotoGP used an older variant of the final sector that differed from the Formula One layout. Following the death of Moto2 rider Luis Salom during practice for the 2016 Catalan motorcycle Grand Prix, the FIM mandated adoption of the Formula One layout for all motorcycle classes for safety reasons. Various chicane adjustments were made in subsequent years before the circuit settled on its current form.
The circuit's changeable wind conditions and comprehensive layout made it a benchmark testing venue. The combination of high-speed and technical sections, combined with tyre behaviour that could shift significantly between morning and afternoon sessions due to wind direction changes, gave testing sessions at Barcelona particular informational value. The circuit hosted Formula One pre-season testing extensively through the 2010s before testing moved to the Bahrain International Circuit.