What I got from the recent chapters is the following: Yotsuba was the first at everything, first to study hard, the first to fail and the first to meet Fuutaro. But despite all of that, all the things she tried to excel at she has failed, becoming the the smartest, becoming the individual and...
There's only one sports car that has a 7 that I know of...
Also, shouldn't the Japanese at least guess its an RX-7? It's really well known and a 90's JDM icon.
I like how he's driving the successor of the AE86.
I guess Takumi is the one who introduced them to each other, otherwise I can't think of anyone else.