Mako Sato took up racing after watching Ryosuke Takahashi drive as a solo racer, and practised until she and her childhood friend Sayuki were the fastest on Usui Pass. They race as Impact Blue, named after the colour of their car: Mako drives, and Sayuki navigates from the passenger seat, which has a mirror of its own. Mako is twenty when the story meets her.
She wants one race against the Eight-Six before she gives up racing. It is run on Usui with one car following the other, and Takumi starts behind. Through C-121, one of the hardest corners on the pass, the Sileighty drifts at high speed and Takumi mirrors it through the whole corner. Sayuki concedes; Mako does not, pulls away, then takes a corner too hard and spins. She does not give up racing either. Later she beats Satake of Emperor, whose Lancer goes into C-121 too fast and hits the guardrail, and by the end of the series she has left for Tokyo to race professionally, which is the end of Impact Blue.
Nissan sold the 180SX only in Japan, from 1989 to 1998: a sister car to the S13 Silvia on the same chassis, with pop-up headlights and a liftgate, sold through a different chain of Nissan dealers. The S13 Silvia was discontinued in 1993 and the 180SX carried on. Japanese owners began swapping Silvia front ends onto their 180SXs, and the hybrid became known as the Sileighty; in 1998 the tuning company Kid's Heart built about 500 official ones on 1998 180SXs, sold through Nissan dealers. Mako's runs an SR20DET with light modifications to the computer and muffler and an extra injector, making 230 PS and set up for Usui, where the manga says suspension is everything.
Aoshima's Snap Kit No. CM-5 builds the Sileighty at 1/32 from 29 parts, released in December 2025. The glossy body colour is moulded in, the colour-separated areas are stickers, and it snaps together without glue. Aoshima lists a custom front bumper, 17-inch wheels and tyres, a custom steering wheel and a sports muffler. First-production boxes include a "Connect!" diorama papercraft, which needs scissors and glue.