Mercedes has been able to offer genuine competition to Red Bull and Ferrari at recent events but whether the team can continue this into Suzuka is unclear.
Wolff conceded in his event preview that Mercedes face 'challenges' in Japan and that Hamilton's impressive drive to third on the grid will be "hard to repeat".
But speaking in Mercedes' debrief video from last weekend, chief technical officer James Allison struck a more positive tone, indicating a belief the qualifying performance "will carry forward to a good extent in the remaining tracks of the year."
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