Spengler hits out at Audi's tactics

The Canadian lost the championship by three points to Mattias Ekstrom, but he feels that Audi's approach to the season was not fair.

Spengler had an eventful year, which involved several collisions with Audi drivers, and in the final two races of the year he had particular trouble with older cars that were out of sequence on pit stops.

"We fought so hard, but the fairness was not the same on both sides in the end," said Spengler. "We played for the sport, they played for the team, like they did the whole season."

Spengler lost a lot of time battling several Audis on Sunday, and Mike Rockenfeller was left out for so long that he ran out of fuel in the closing stages.

"It's a shame that they left a car out until it ran out of fuel," he added. "They played team to prevent me from getting to the front to win the championship.

"When Paul (di Resta) was in front of Mattias they called him in. He could have blocked but Mercedes didn't do that for the sake of the sport.

"Unfortunately the result is not what it should be, but you can't change it. It was a difficult year, but we drove fair the whole season."