Live timing & standings
Overall and class standings, relative gaps to the cars around you, lap times with personal-best highlights, flags, and a live track map with every car.
Free · Open source · Windows
The overlay and telemetry companion for Le Mans Ultimate
Mulsanne puts live timing, standings, relative gaps, fuel and energy, tyres and a track map on screen while you drive, then records every lap so you can find where the time went. It reads the game's built-in shared memory, so there's no plugin to install.
Version 0.3.0 · Updates install automatically
Everything you need on track
Fourteen widgets you can move, resize and switch on or off. Arrange them once and save the layout as a profile.
Fuel & virtual energy
Per-lap consumption and laps remaining for both fuel and virtual energy, so you know exactly when to box.
Tyres, damage & electronics
Tyre temperatures and wear, vehicle damage, TC, ABS and brake bias, plus throttle, brake, clutch and steering inputs.
Free & open source
No subscription, no account, no ads. The source code is on GitHub, so you can see exactly what it does, report issues or contribute.
Lap recording & telemetry
Every lap is saved automatically. Compare speed, input and gear traces against your personal best in the companion app.
Daily race schedule
See upcoming daily races in your local time without starting the game.
Find where the time went
Pick any recorded lap and compare speed, throttle, brake, steering and gear traces against another lap or your personal best. The track map colours each corner by speed so slow spots stand out.
Make the HUD yours
Switch widgets on and off, tune what each one shows, and set scale and opacity. Save different layouts as profiles for endurance races, sprints or qualifying.
Never miss a daily race
Upcoming Le Mans Ultimate daily races from RaceControl, filtered by tier and shown in your local time. No need to launch the game to check.
How it works
-
Install
Download the installer from GitHub Releases and run it. There's nothing to install into the game, and Mulsanne updates itself when a new version is out.
-
Drive
Run Le Mans Ultimate in borderless or windowed mode. The overlay appears on your primary monitor.
-
Arrange
Press Ctrl+Shift+F9 to drag and scroll-resize widgets. Ctrl+Shift+F10 shows or hides the overlay.
No game running? Turn on Demo data on the Live page to set up your layout first.
Frequently asked questions
Is Mulsanne free?
Yes. Mulsanne is free to download and use.
Is Mulsanne open source?
Yes. The full source code is on GitHub, where you can report issues, suggest features or contribute.
Does Mulsanne need a game plugin?
No. Mulsanne reads Le Mans Ultimate's built-in shared memory, so there is nothing to install into the game.
Does the overlay work in fullscreen?
Run Le Mans Ultimate in borderless or windowed mode so the overlay can draw on top of the game.
Where are my laps stored?
Laps are saved locally on your PC in a SQLite database. Nothing is uploaded.
How does Mulsanne update?
The app checks for updates on launch and offers to install new versions.