Sebring · race, lap 33 · session clock 1:05:33 · from Marcus's recording
Tanguy Billon #4 spun by the #43 Cadillac he had just passed
Left: what the overlay's virtual spotter would have shown in Tanguy's car, drawn by the overlay's own spotter code. Right: an overhead of the same seconds. Gaps along the track come from the recording. Lateral positions and the rotation of the spin are illustrative.
Billon closed from 6 m behind and drew level at 1:05:30.2 through the left-hander, then led by 3.8 m at the exit with the cars still overlapping.
At 1:05:33 he dropped from 130 to 51 km/h in two and a half seconds. His steering went to about 300° of left lock, and his engine fell to 1,089 rpm.
The Cadillac was off track from 1:05:33.2 to 1:05:35.9, rejoined ahead, and was 80 m clear ten seconds later.
How the spotter was simulated
real codeThe overlay's spotter engine (v0.8.268) was run on the recording with Tanguy's car as the player car. The spotter drawn here is the overlay's own renderer, fed those snapshots.
inferrediRacing only reports which side a car is on for the car the recording came from (Marcus's #3). For Tanguy's car the side is not in the file. Here the sim is assumed to call the Cadillac on his right whenever the two cars overlapped.
Select Not called to see what the spotter draws when the sim gives no side: a faint mark on both rails.
Why the right-hand side
He made the pass on the inside of a left-hander, which puts the Cadillac on his right.
Right after contact the Cadillac left the track, and the corner exit runs out to the right.
Full left lock means his rear was pushed to the left, which matches a hit on the right rear. The overhead's clockwise spin follows from this. How far he rotated is not recorded.