Assetto Corsa Cars Free

Koenigsegg One:1 for Assetto Corsa

The Koenigsegg One:1, the Swedish "megacar" with a 1:1 horsepower-to-kilo ratio, made by a modding team with physics by CCX. Free.

Author: CCX y equipo (moringaou, Jadonyx, Legende_TLM) Version: 1.1 Compatible: Assetto Corsa (PC); the mod page doesn't mention Custom Shaders Patch 4.6 (53) Updated: 6 Mar 2016 Reviewed: 24 Oct 2026
Download Koenigsegg One:1

More screenshots on OverTake.gg (formerly RaceDepartment) ↗

What this mod does

The Koenigsegg One:1 is the Swedish hypercar its maker billed as the first «megacar»: the name comes from the one-to-one ratio between horsepower and weight in kilos, with around one megawatt of power. This mod is posted by CCX, who did the physics, and has passed 115,000 downloads with a 4.6 out of 5 rating.

What’s included

  • Modeling by moringaou and Jadonyx; textures by Legende_TLM, moringaou and After_Midnight; sound by NeverKrash; gauge design by Fillipo94.
  • Track-focused aero: canards, extended venturi tunnels, side skirts and an active rear wing.
  • Variable-geometry turbo with more than 1,000 Nm between 3,000 and 7,500 rpm, a cut at 8,250 rpm and Michelin Cup tires.
  • Driving tests by Nick Moxley and physics help from mclarenf1papa, misterbeam and burrito.

Who it’s for

For anyone who wants a street hypercar with extreme numbers for the Nordschleife or fast tracks. Go easy on the throttle: it’s a lot of car.

Version

Version 1.1 is from March 2016 and hasn’t been updated since. It predates the game’s current tire models and the mod page doesn’t mention Custom Shaders Patch, so it may behave differently from modern cars.

Unofficial fan-made mod. Names, logos and liveries belong to their respective owners; neither the author nor Holymod is affiliated with them.

User rating

4.6 / 5
53 ratings in total 4.6 / 5 · 53 on OverTake.gg
Tried it? Rate it: Anonymous, one vote per person.

Highlights and things to keep in mind

Highlights
  • A highly sought-after hypercar, for free
  • Detailed team credits
  • Active aero and variable turbo
Keep in mind
  • No updates since 2016
  • Physics predate the game's current tires
  • Unofficial mod: trademarks belong to their owners

Requirements

  • Assetto Corsa for PC
  • Content Manager recommended for installation
  • Free OverTake.gg account to download

How to install it

  1. Go to the One:1 page on OverTake.gg and sign in.
  2. Download the file (about 97 MB).
  3. Drag it into Content Manager and install it, or copy the car folder into assettocorsa/content/cars.
  4. Find it in the car list as Koenigsegg One:1.
  5. Start with assists on until you get used to the power delivery.

Version history

  1. 1.16 Mar 2016Current

    Latest version released on OverTake

Common problems

Who made the model?

According to the credits, moringaou and Jadonyx; CCX did the physics and the_meco helped export it to the game.

Does it need Custom Shaders Patch?

The mod page doesn't mention it; it's a 2016 mod designed for the base game.

Is it still being updated?

No. The latest version is 1.1, from March 2016.

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