in one episode as the main character and his friend walking up the stairs his friend points out that you can get a glimpse of girl's underwear, we then see a glimpse oof two girls' underwear

Talk of giving away virginity as part of a trade.

Female nudity in season 2 episode 14

Characters have some sexual dialogue in some episodes, nothing too graphic. Girls wear tight clothes and the camera sometimes focuses on their private areas.

There's several car crashes throughout the show. No major injuries or gore is shown.

Some fansubs has the use of the word "fuck"

Frequent uses of "damn", "freaking", "hell", "ass", "crap", "pissed", "dumbass", "bastard", "bullshit" (often said as "BS"), "prick", "asshole", "bitch" and "son of a bitch" in Funimation dub.

Some characters smoke once in a while.

Apart from intense racing and a few car crashes, nothing.