
Sekiguchi, who has moved to SARD after winning last year's title for TOM'S alongside Sho Tsuboi, set the day's fastest time of 1m28.276s to give Toyota a clean sweep of top times in official pre-season testing.
However, Tsuboi's Saturday benchmark of 1m27.972s in the #36 TOM'S car stood as the best time across the two-day test.