Jenson Button was at odds to explain Lewis Hamilton's thinking during the German Grand Prix after their pair made contact while scrapping over position.
Button was ahead of Hamilton on track when the Mercedes driver made a move into the hairpin as Button took a wide approach to take a late apex.
Hamilton hit the McLaren, causing damage to his own front wing, and later admitted that he thought Button was allowing him through.
Button, who went on to claim eighth position, was puzzled by Hamilton's approach.
"When I felt the hit from Lewis, I was a bit surprised," he said.
"A lot of drivers take a wider entry line into Turn Six in order to get a better exit – perhaps Lewis expected me to let him past, but why would I let anybody through? We were racing."
Button admitted that he and McLaren expected more from their weekend at Hockenheim.
"I got a good start – I was running as high as sixth in the early stages – so things were looking okay" he said.
"But I think we got the strategy wrong when we made our second stop. I’m not sure why we stopped so early, but it made it extremely difficult for me to keep the set of tyres alive until the end of the race, which was the plan at that point."
"We expected more from today."