Ferrari Challenge Mugello: Nielsen beats GP2 champion Leimer to win

A late safety car, following a crash between Vladimir Hladik's Baron Service Ferrari and the car of Manuel Gostner's Ineco entry collecting Briton Chris Froggatt, set up a last lap dash to the finish.

But with Nielsen and Leimer well clear further up the field, Nielsen strolled to the finish ahead of his race-long rival.

Leimer had threatened early in the race, attempting a pass around the outside at the first corner on the opening lap and again at the midway point, but never looked like completing a pass.

The top two had pulled well clear of Philipp Baron, who made life difficult for himself by repeatedly touching the grass at various corners and allowing the sister Octane 126 Ferrari of Bjorn Grossmann to close in.

But Grossman was unable to take advantage and finished fourth.

Sam Smeeth had been in a race-long battle with Alessandro Vezzoni's Rossocorsa Ferrari but came out on top to take fifth as Vezzoni slipped to seventh behind Henry Hassid, who now has one hand on the Coppa Shell class title.

Eighth fell to Jens Liebhauser's Formula Racing Ferrari after slowly falling from fifth on the grid.

The top 10 was completed by Martin Nelson and Hassid's title rival Johnny Laursen, with those two in a tight battle early in the race.

The race finish was frantic, with Marc Brough and Joshua Catru spinning at the final corner after contact and almost collecting several other cars as they slid into the gravel on the last lap.