Noun
a small low-powered electrically powered vehicle driven on a special platform where there are many others to be dodged
Source: WordNetAnyone who has ever been privileged to direct a film also knows that, although it can be like trying to write War and Peace in a bumper car in an amusement park, when you finally get it right, there are not many joys in life that can equal the feeling. Stanley Kubrick
“It’s like a buffer, a bumper car, that redirects him,” she adds. Source: Internet
The bumper car "meet cute" takes care of "boy meets girl" part of the RomCom equation. Source: Internet