Mike Krack believes Sebastian Vettel will remain fully focused on achieving the best possible results for Aston Martin in his final F1 races.
The four-time World Champion has just four races left before his retirement from Formula 1 and equalled his season-best result of sixth place at the Japanese GP.
His back-to-back points in Singapore and Japan have helped the team to P7 in the Constructors' Championship, leapfrogging the Haas team.
Speaking during the Japanese GP weekend, Aston Martin Team Principal was asked if he had noticed any changes in Vettel since the announcement of his F1 retirement.
"Not at all. Maybe even more focused than then than before," Krack told media.
"Because he was the kind of guy when he made this decision, he said 'I will give you everything until the end'."
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Krack: No 'farewell party' conversations yet
Vettel has, so far, showed little regret about his retirement decision, but spoke highly of the Suzuka circuit and the Japanese GP fans.
The 35-year-old suggested that he would be open to a one-off appearance at the track in the future, possibly in a reserve driver role.
Krack added that whilst minimal conversations had taken place about leaving parties, he acknowledged Vettel's desire to return to Suzuka in some capacity.
"We don't speak about farewells, we don't to parties until it is the moment to stop. So, from that point of view, it is all business as usual," added Krack.
"We don't really speak about stopping or whatever. We speak about Suzuka, then we will speak about Texas, and then come Abu Dhabi we will speak about what comes after.
"I heard that he wants to come back to Suzuka next year, so let's see."
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