Robert Kubica describes moment engine blew up during Belgium GP qualifying

Robert Kubica's engine went up in smoke during qualifying ahead of the Belgium Grand Prix. The Mercedes engine failure allowed enough time for the Mercedes works team to fix Lewis Hamilton's car after his crash in FP3.

On this power track, the two Williams cars struggled and once again lined the back of the grid, but as the Polish Formula 1 driver points out, other drivers are taking penalties which would have pushed Williams up.

"I felt a lack of power on the back straight, but there was no strange noise. At first, I thought it was a deployment issue, but then I realised in the mirror that there was smoke," Kubica said.