The only drivers to win in Barcelona without starting on the front row are Michael Schumacher, Alonso and Verstappen (fourth in 2016)
Spanish Formula One Grand Prix
Barcelona’s Circuit de Catalunya:
Lap distance: 4.655km.
Total distance: 307.104km (66 laps)
2017 pole: Lewis Hamilton (Britain) Mercedes, one minute 19.141 seconds.
2017 winner: Hamilton
Race lap record: 1:21.670, Kimi Raikkonen (Finland), Ferrari 2008.
Hamilton has 63 victories from 212 races and is second in the all-time list behind seven-times world champion Michael Schumacher (91). Vettel has 49.
Ferrari have won 231 races since 1950, McLaren 182, Williams 114, Mercedes 77 and Red Bull 56.
Former champions McLaren and Williams have not won since 2012.
Until last year, when Hamilton won for the second time, the Spanish Grand Prix had been won by a sequence of 10 different drivers.
Fernando Alonso (2006, 2013), Hamilton (2014, 2017) and Kimi Raikkonen (2005, 2008) are the only current drivers to have won twice in Spain.
Other active winners are Verstappen (2016) and Vettel (2011).
All but three of the last 17 Spanish Grands Prix have been won from pole position. Those three were all in the last seven years, however.
The only drivers to win in Barcelona without starting on the front row are Michael Schumacher (third on the grid in 1996), Alonso (from fifth in 2013) and Verstappen (fourth in 2016).
Alonso is the only Spaniard to have won a Grand Prix.
Ferrari are the most successful team at the Circuit de Catalunya with eight wins. Since the first Spanish Grand Prix in 1951, the Italian team have won it 12 times.
Red Bull can take their 150th podium finish on Sunday, having failed to do so in Baku when both cars collided.
Spain will also be Red Bull’s 250th race, but they are celebrating that landmark in Monaco rather than Barcelona since they did not start the 2005 US Grand Prix at Indianapolis.
Vettel, meanwhile, can take his 50th win on Sunday.