Aimed at creating the most realistic driving simulation possible, Assetto Corsa is a new racing game from Italian game developer Kunos Simulazioni, currently available for PC via Steam Early Access. The game uses officially licensed cars, a complex physics engine to mimic the weight and feel of driving, and laser scanning technology to intricately recreate real-world race tracks.

So what's a modder to do when faced with such a realistic driving experience? Naturally, recreate one of the most unrealistic race tracks in gaming history: Rainbow Road.

Reddit user N64AC has rebuilt the classic Mario Kart 64 track and released it as a playable custom course for Assetto Corsa. Now everything from Ferraris to F1 racers can speed around the beloved candy-colored track, known for its extended length, floating Mario constellations, and wall-jumping shortcuts.

Since Assetto's high-end racers boast a bit higher top speed than Mario and co.'s 150cc race karts, the already-long track has been scaled up to a whopping four kilometers—twice its original length—in order to make it easier to drive.

Creator N64AC says that the course's large jump doesn't always play nice, and can break the suspension of some cars—even with game's damage model turned off. Other future plans include a speed limiter for the pit-stop area, implementing a mini map and, of course, the Rainbow Road theme song.