Mar.12 - Haas has emerged as a dark horse favourite to finish 'best of the rest' behind the top three teams in 2018.
"The car looks excellent -- as good as last year's Ferrari. And everyone knows how good that worked. And the handling is really impressive on any fuel load," he added.
Haas boss Gunther Steiner admits the American team could lead the midfield in 2018.
"It seems that the middle of the grid will be very close, but I hope we manage to lead them," he said.
"I can imagine that the test filled the whole team with confidence," said the former Stewart driver.
"Kevin said the car feels good, that it suits him well and that they've taken a step forward.
"But the team and Kevin are optimistic," Magnussen snr added. "Now they go to Melbourne so we'll find out."
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