Lance Stroll's impact in his Singapore Grand Prix qualifying accident was measured at 50g, according to the Aston Martin driver.
Attempting to get through to Q2, Stroll got wide rounding the final corner and touched the kerb, with the car spitting into the Tecpro barrier on the outside.
In the violent impact, the left-front was ripped from the wheel tethers with the car destroyed as Stroll ultimately did not race after he was withdrawn.
It is the second time he has failed to start a race having been entered for it after the 2020 Eifel Grand Prix when he tested positive for COVID-19 during the weekend, as he revealed the forces involved in the accident.
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Stroll reveals impact
"It was close to 50g," Stroll told media including RacingNews365 of his accident.
"I had a big [crash] in Mugello (during the 2020 Tuscan Grand Prix), but I am not sure how big that was, but it was pretty big when I had the puncture and went off the track.
"That was pretty big, and definitely not small.
"I felt the [effects] creeping up on me Saturday night and I knew it wasn't going to be fun waking up on Sunday.
"I felt like creeping up on me Saturday night, and I knew it wasn't going to be fun waking up Sunday morning. I was healthy to race, but I wasn't physically feeling good enough to do Singapore, which is the toughest race of the year.
"I went through all the concussion protocols and stuff, did all the test and it was kind of: 'See how you feel later tonight and make a decision tomorrow'."