Lance Stroll commented that he had to contend with brake problems before exiting the Monaco Grand Prix.
After a poor qualifying, the Canadian was running outside the top ten and was hampered by contact with Red Bull's Sergio Perez, who began to get frustrated at the rear of the field.
When the rain hit around Lap 50, Stroll managed to pit for Intermediates as the track conditions worsened before stopping on Lap 53 with problems.
Prior to his retirement, onboards show the Aston Martin driver struggling to get his car to stop through the Loews hairpin and hitting the barrier.
With his front wing lodged under his wheels the Canadian hit the barriers for a second time at Mirabeau, before he elected to park his AMR23.
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Stroll struggled to stop the car in the tricky conditions
Speaking after the race, Stroll believed he had problems relating to the brakes on his car, which made it difficult to stop.
"I had some issues with the car and couldn't slow down and I hit the wall like five times," he told media, including RacingNews365.com.
"I started feeling the car struggling to slow down before the rain, and then when it started to rain, I just couldn't start to slow down the car."
It was the second retirement of the season for Stroll, after having to retire from the race in Saudi Arabia with technical problems.
When asked how he felt about how his weekend had unfolded, the Canadian looked on the bright side: "Laugh or cry, you know? You might as well laugh."
His retirement and a top five finish for both Mercedes drivers enabled them to close the gap in the Constructors' Championship, with the pair now separated by just one point.