Yvan Muller took his sixth win of the World Touring Car Championship in Race 1 in Portugal after getting past polesitter Gabriele Tarquini at the start of the race.
Muller initially opened up a lead of 1.7 seconds over Tarquini, although the Chevrolet would take the checkered flag just 0.3s ahead of the Lukoil SEAT after taking it easy in the closing stages.
Muller's teammate and nearest championship rival Rob Huff remained close behind the leading duo throughout the race after getting by the BMW of Norbert Michelisz at the start.
Michelisz had a quiet run to fourth and the Yokohama Trophy win, with Alain Menu in fifth in the third Chevrolet. Menu had started ninth, and had contact with Aleksei Dudukalo on the first lap. Dudukalo ran wide and collided with Gabor Weber when he rejoined, bringing both of their races to an early end.
He passed Alberto Cerqui on lap three and Tiago Monteiro on lap four to move into sixth, before taking fifth from Tom Coronel two laps later.
Coronel, Monteiro and Cerqui followed him, with Alex MacDowall and Pepe Oriola completing the top ten.
James Thompson had been running 12th and was part of the battle for ninth in his Lada Granta on its second WTCC appearance, before a broken driveshaft stopped him on the penultimate lap.