The modifications, to make it easier for drivers to follow and overtake, are expected to make cars a second and a half slower per lap. Lewis Hamilton led from pole and took a dictatorial victory by 25 seconds, with his Mercedes teammate Valtteri Bottas completing a one-two for the silver squad, while Red Bull's fiery Max Verstappen punched above his weight to deny Ferrari a podium. Hamilton was serene but stressed victory had by no means been a simple task.
Todt however insists every driver had an opportunity to voice their opinion, and that his door is always open to whoever feels the need to discuss a specific matter.
Bottas now sits third in the drivers' championship some 37 points adrift of team-mate Lewis Hamilton, whose back-to-back wins elevated him to the top of the standings. Ten laps after the Ferraris had pitted, Hamilton ducked into the pits with nearly 20 seconds to spare ahead of the next auto. But it's unclear what impact the upgrades have had on the competitive order, beyond Ferrari seeming to fall behind Mercedes in qualifying pace and also fall behind Merc and Red Bull on race pace.
"We go to Monaco on a high note, but we know we have a long mountain to climb and a lot of work to do".
In Ferrari's favour, Mercedes has struggled at certain circuits in past years, including Monaco.
But Vettel struggled with tire wear and Ferrari made a decision to bring him in for an extra stop. More importantly, Mercedes-AMG locked out the front row.
Mercedes cautious despite a commanding victory in Spain
Three of the drivers, Lando Norris, Russell and Oliver Turvey were on duty for Pirelli testing 2019 prototype tyre compounds.
He finished eighth, then bounced back by outqualifying Hamilton in Bahrain and China, finishing second in both races, and was runner-up again on Sunday in a race the champion dominated. That dropped him back to 4th place, behind Max Verstappen. Yet even the third place in Barcelona wasn't without its drama, as Verstappen clipped Lance Stroll when the track was under VSC conditions. The resulting collision left Hulkenburg with a shattered rear suspension while Gasley ended up with a snapped front suspension.
6/6 - Valtteri Bottas and Daniel Ricciardo have combined to set the last six fastest laps.
Ricciardo is out of contract with Red Bull at the end of the season, but Wolff has indicated that the team are happy with their current driving pair.
"For me it's not about setting records everywhere", he added. "But if they go back, it will be like admitting the mistake", a source said.
Mercedes also returned to the top of the constructors' standings with their first one-two finish of the year and Hamilton finally felt at one with the vehicle.
Earlier in the season, it seemed that Wolff had ruled out the six-time grand prix victor for next season. Nicolas Latifi was the other driver on Pirelli duty, getting his second consecutive day in the Force India as a result. No team could touch their times during the session. Although overtaking moves were a rarity on Sunday, Alonso's stood out as particularly fearless and skillful. Sainz having pitted caught Ericsson around Lap 30 and had a cushion over Charles Leclerc in the other Sauber. Grosjean can forget Ferrari.More news: Meghan Markle's sister attacks media pursuit of their father before royal wedding