Racing incident.
The 4C made a mistake by putting two wheels on the grass, the Megane made a mistake by not leaving more room on the inside. Both drivers had the right to go side by side through the corner, no one was far enough ahead to claim the corner as their own, but both drivers being human and non-pro, small mistakes were made. It happens.
Any other talk about crowding or shoving on the straight leading to the corner is complete nonsense.
People need to do a better job of educating themselves about the different levels of racing that exist, and how overtaking is handled in those different levels.
During track days for amateurs, overtaking is only allowed on the straights under power, there is no overtaking under braking allowed.
In most vintage racing categories for amateur drivers, the overtaking driver must have full overlap (front bumper beside front bumper) BEFORE the braking zone. If this occurs, the driver on the outside must yield the position. If the drivers are of professional caliber, 2-wide through the corners may be allowed....but remember, priority #1 here is bringing the car home in one piece.
In most club and amateur racing, the overtaking driver needs roughly 50% overlap by the TURN IN POINT, not the start of the braking zone. If the attacking driver can achieve 50% overlap by the turn in point, and can maintain that 50% overlap through the corner, the other driver must leave them space. This applies to attacking on both the inside, and the outside.
If a driver on the outside of a 2-wide scenario, either the attacker or defender, loses that 50% overlap, they have lost the corner and should not expect to be left space on corner exit (not saying that happened in the specific case being discussed here, just in general). If a driver on the inside of a 2-wide scenario, again either attacker or defender, fails to maintain that 50% overlap, they should expect to be turned in on by the outside driver. That said, it is the responsibility of the driver on the outside to know that even if they have a right to turn in to the apex, the car on the inside cannot simply disappear. Many times, even if you have the right to turn in on someone, in the name of self preservation, it’s wise to not turn in on someone (especially if they are on their braking limit....they may not have achieved enough overlap to command the space be left, but being on the braking limit means they can’t slow down anymore, and won’t be able to “pull out” of the attempted move).
The “50% overlap” rule is not hard and fast though, it changes from series to series. In Aussie Supercars, due to the handling nature of the cars and the sanctioning bodies desire to put on a good show, the attacking driver getting their front bumper to the defending driver’s C-pillar is considered enough overlap to demand space be left. If F1, it’s the opposite, 50% overlap is not enough. Here, the attacking driver needs basically their front wheels to be alongside the front wheels of the defending driver in order to command the space (this mostly applies to medium and high speed corners, slow corners have some exceptions). F1 is a terrible example to look at though, as they are beyond pathetic at being consistent in terms of when space needs to be left, how much space needs to be left - and let’s face it, who the specific drivers involved are and what colour their cars are.