"I have no idea how this weekend is going to go - past year here I had no idea how we were going to go", he said. The German is happy that Ferrari have a vehicle that can challenge Mercedes and Red Bull at all circuits. "And that's not sufficient enough to win a world championship". Some 24 of the last 27 races run on the Circuit de Catalunya have been won from the front row, the highest percentage of any of the sport's traditional tracks.
On the Red Bull side, their biggest threat may be themselves, specifically their own drivers. Vettel will be gunning for his fourth pole in succession in Spain, and should he get it then he is likely to be rewarded. All the teams are well aware of the Circuit de Catalunya as it serves as the pre-season testing base.
But this season has been one to forget so far for the 20 year old.
Hamilton has 120 career podiums and is second on the all-time list behind Schumacher (155).
It was his first win this season - extending his run of successful point-scoring finishes to a record 29 races - and he was quick to admit it was one of the luckiest of his career.
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Five former winners will be on the grid - Verstappen (2016), Hamilton (2014 and 2017), Vettel (2011), home hero two-time champion Fernando Alonso (2006 and 2013) and 2007 champion Kimi Raikkonen (2005 and 2008). Ferrari and Mercedes have an upperhand on pace, and Ricciardo and Verstappen won't want to exacerbate that by stepping on each other's toes again.
The port director and other authorities would have to agree to the restricted access over the Grand Prix weekend. Force India rose to the top of the midfield, where they've been each of the last two years, in Baku, and they'll look to continue that momentum.
And Bottas's early pace suggests Mercedes may have taken a positive stride forward with Vettel's Ferrari team having previously boasted the most complete package of the season.
The 33-year-old Englishman, who spent last weekend at the Met Gala in NY, is yet to sign an extension to his Mercedes contract which expires at the end of the season. A deal to race in Miami would also be the first struck in the post-Bernie Ecclestone era.
His damaged auto was taken on a truck back to the Red Bull garage for repairs.
Further discussion will now take place between the owners, FIA - motorsport's governing body - and Miami city authorities, with an inaugural Miami Grand Prix potentially taking place in October 2019.