Max Verstappen believes Honda's development through the 2019 Formula 1 season has put the Japanese manufacturer within touching distance of matching Mercedes' output.
The Mercedes power unit has long been the benchmark in F1, although Ferrari appeared to move ahead in 2019.
That did not stop another year of Mercedes success, however, as the Silver Arrows' greater aerodynamic concept won through, with Verstappen also winning the same number of races as Sebastian Vettel and Charles Leclerc combined.
Honda's relationship with Red Bull has been far more harmonious than their previous tie-up with McLaren and Verstappen paid tribute to the team in Sakura for the improvements they have made across the year.
"We are very close to Mercedes," said Verstappen. "[Honda] have been working flat-out and the improvement we have made with the last two [engine upgrades] was a big one.
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