Paul di Resta says he is disappointed not to have received an apology from Nick Heidfeld over the collision between the pair in Germany last weekend - with Heidfeld insisting he sees no reason to say sorry to his Force India rival.

The pair clashed on the opening lap of the Nurburgring race, with di Resta eventually finishing the race down in 13th place and Heidfeld retiring after a clash with Sebastien Buemi as he attempted to make his way through the field.

The German incident was the second involving the pair after a clash on track in Canada which saw di Resta handed a drive-through penalty and the Scot said he was disappointed not to have had an apology from the Renault driver for the latest coming together.

"He's not apologised, he's not spoken to me, and it was pretty blatant," di Resta, who insisted he would have apologised if he felt he was at fault, told the BBC. "The thing in Canada never cost him anything, and then he ran into the back of me and took me out of the race in Germany.

"I lost more out of it than he did. He was the one that committed the crime."

Unsurprisingly, Heidfeld failed to agree with di Resta over the incident and said he saw no need to say sorry for what happened.

"Why should I go and apologise?" he said. "It was just a racing incident.

"You have to live with what you get in terms of what the stewards decide. It was a racing incident. I'm OK with them penalising me, and so there is no special reason why I've not said anything to him."

Heidfeld was given a drive through penalty for the clash, although he was unable to take the penalty before being taken out of the race by Buemi.