do you know where can i read a translation version of it, or did you read the korean ver/google translated ver? and seems like Into the red's setting is F1 per the tag i saw on googlebook, while Momentum, i feel like it was more WEC or 24h of Le Mans? i read Momentum a long time ago, then became an F1 fan, and last year i came back and kinda skimmed through the story again. it's very interesting to see some inaccuracies while also noticing the people/incidents in F1 that inspire the characters/events in Momentum
I got the novel on ridibooks, it's just 2 volumes and I used papago to translate it, it's pretty decent. DM me if you want more specific info. Since the novel is a prequel, it shows Oscar and Waldo's days racing in F1, after they part ways, oscar ends up racing in le mans a few years later if im not mistaken and that would be where the manhwa picks up. (⌒▽⌒)

let's see how much racing will actually be in this story... also fyi F1 drivers sweat a ton and lose 2-3kg of weight in a race due to sweating, not to mention they almost immediately have to do some regulation check and media duty after a race, so yeah having sex right after a winning race is not exactly realistic but hey this is yaoi not real life i guess? even Momentum by Park Jiyeon has tons of inaccuracies and she's actually an F1 fan. also Jiyeon is a huge fan of the BL novel about racing named 인투 더 레드, really hope that after Wolf in the house 2 she will draw that one for the F1 girlies like me haha.