Aston Martin boss Mike Krack feels it would be "unfair" to compare the working styles of Fernando Alonso and Sebastian Vettel.
Alonso has been getting acquainted with his new team ahead of the 2023 F1 season, with the Spaniard having impressed many with his laps at the wheel of the AMR23 during pre-season testing in Bahrain.
With Alonso joining the squad on a multi-year contract to replace the retiring Vettel, Krack admits that the pair have their similarities but acknowledges that there are also some key differences.
"It's very, very difficult to compare [them]," Krack told media, including RacingNews365.com.
"Both are very, very fast drivers. Both have been World Champions, but one is Latin [and] one is German."
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Why Krack is reluctant to compare Alonso and Vettel
Given their differences, Krack does not want to compare each driver's strengths and weaknesses.
"I think it's difficult to really compare," the team boss continued.
"They both have their own ways of communicating, both have their own ways of dealing with the team, and I think it's unfair to say [if] one is better [or] one is worse in these kinds of areas.
"They are both great, great champions."
With Lance Stroll forced to miss pre-season testing after sustaining injuries in a cycling accident, Krack initially did not rule out the possibility of Vettel returning to replace Stroll should the Canadian be unable to race in the Bahrain Grand Prix.
However, it was later confirmed that reserve driver Felipe Drugovich will be available in the event of Stroll not returning in time.
Ahead of the season-opening Bahrain Grand Prix, RacingNews365.com journalists Dieter Rencken and Michael Butterworth analyse where each of the F1 teams stands after pre-season testing.