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VBOX SIM is a new and exciting way to go faster, using the same tools in game that racing drivers use in the real world!

  • Data & video from your favourite racing game
  • Compares speed at every part of the circuit
  • Works on all well-known racing games
  • Analyze your race data with Circuit Tools
  • Synchronized race video & data

Compatible with:

  • Assetto Corsa (including Competizione)
  • F1 2017 onwards
  • Project Cars 1 & 2
  • rFactor & rFactor 2
  • iRacing
  • RaceRoom

How does it work

The VBOX Simulator Software extracts information from all well-known racing simulator games and converts it to VBOX data, enabling the lap analysis in the popular Circuit Tools application.

The fully synchronized video and data can be analysed in Circuit Tools allowing you to quickly identify where time is being lost and where time can be gained around a circuit.

Powerful Analysis Software

Circuit Tools is designed by racing drivers for racing drivers, with none of the complexity normally associated with data analysis software.

The software will automate many tasks and give you all the information required to improve lap times.

Circuit Tools is now compatible with Windows, macOS and iOS devices.
Would you like to try Circuit Tools at home? Watch this video and download the accompanying video and data files for replay in Circuit Tools.

Fastest Lap First

This feature is unique to Circuit Tools

The fastest lap from your latest session is automatically chosen and displayed on the graph window.

You can compare runs from your latest session, or from different days, drivers or sessions simply by importing them and clicking on the relevant lap time shown in the session window.


The data window displays the values of the channels which have been logged at the position of the graph cursor. By default, Speed and Delta-T are displayed.

Side-by-side Video

Watch the data-synchronized video side by side in slow motion to see the lines taken in each session. You can also compare different drivers. The video moves one sample at a time with a simple key combination.

Delta-Time Trace

Time difference or 'Delta-T' is a very useful channel that shows the lap time difference between two different laps, e.g. your last vs. your fastest lap or your best vs. another drivers lap. Use this to pin-point areas for improvement.

Read how VBOX Sim helped Riley Phillips to create a more accurate car virtually

Ready to upgrade? Add VBOX LapTimer for an even more authentic experience.