WRC driver Ostberg makes circuit racing debut in Porsche series

The Norwegian, who has driven select rallies for the M-Sport squad in the WRC in 2017, drove the series' #911 guest car to ninth and seventh place finishes in the weekend's two Porsche races at the Swedish circuit.

"It was my first experience racing on a circuit, with other cars on track, but I really enjoyed it," Ostberg told Autosport.

"I'm happy with the progress I made as well and managed to adapt to the car pretty quickly.

"The only problem was that it didn't have a handbrake!"

Ostberg qualified 11th fastest of 14 entries in a rain-affected session on the Saturday, before claiming his pair of points finishes.

"I didn't have any problem learning the car, but learning how to race was a lot more of a challenge," he added.

"Knowing when and how to defend your position, to build up speed to try and pass people.

"Basically, I had to learn how to think like a racing driver in two days."

Ostberg said he had been caught out by how different the 911 GT3 was to drive in the wet.

"People were going all over the track to find the grip when it was raining and I could not understand what they were doing," said Ostberg.

"There were so many things I learnt over the weekend, and I think it paid off with the result in the second race.

"I was up to sixth and even chasing fifth for a while before I was passed, so it was a lot of fun."

Porsche's guest car has been used this season by the likes of fellow rally driver Andreas Mikkelsen - at Rudskogan - and Mahindra Formula E driver Felix Rosenqvist.

Ostberg added he was uncertain if he would get another chance to race in the series due to his WRC commitments, but was open to a further outing should another opportunity arise.