http://www.renault-f1.fr/?Rupture-mecanique-pour-Robert
google translate wrote:...
Two hypotheses for this abandonment: Let the nut was loose but could have taken the first four rounds, including three under safety car, or there is a technical problem from the wheel nut. In any case, think what Alan Permane.
In any case, the GP finished, the men went to Renault on track to find this nut.
so if they've found this nut we will get know soon or they will keep it for themselves in order not to blame particular mechanic for this, and I like their philosophy behind, that is, as mentioned in cited news, "we win and loose together", which is quite obvious but when it comes to real life this is what makes one team stronger or not.
I would love to hear more on different teams spirit from insiders (although not in this thread).