http://www.autosport.com/news/report.php/id/101147
2012 巴林战那场,FIA 的判决
In the end the stewards decided to not take any action because Rosberg had
moved in a continuous manner and no 'significant' part of either Hamilton or
Alonso's cars was alongside the Mercedes driver at the time.
最后,大会决定不对Rosberg开罚,因为那是连续行为,而且不管是 Hamilton
或是 Alonso 车辆的"significant"部分,在那时间都没有和车手并排。
这场,ALO的鼻翼也已经进入后轮了,但ROS没有被判法。
所以从大会对27.7条的解释,看来比较像是林主播昨天提的
后车的sigficant part要到车手旁边,才需要留空间