The high-speed crash brought out the safety car in Baku, with all the drivers lining back up for a standing restart, with Perez effectively in pole position.
The Mexican was initially put under pressure by seven-time world champion Lewis Hamilton going into turn one, before the Briton locked up his front tyres and went cascading into the runoff area, handing the win to the Red Bull driver, helping the team extend their lead in the standings by 26 points over Mercedes.
“It certainly feels I’ve made good progress, not just this weekend, also in Monaco,” he said after the race.
“Every weekend, the understanding grows and after each weekend we do a very deep analysis. We do a lot of work back in the factory to try to figure out what we can do better as a team.
“But yes, certainly I think we are getting there. We are improving and I see no reason why, going to a different track, we cannot be able to have a similar kind of performance.
“Definitely my confidence is growing. The understanding with the team is getting there. It’s only race number six of the season, there’s still plenty to go.
“But it’s important to keep this momentum and to keep improving, race after race.”‘
Perez, who had a tough start to the year in his new machinery, predicted it would take him around five or six races to get to grips with the Red Bull, but admitted it had been harder than he had expected.