FAQ - Terms
01. What is the meaning of the red and orange lines of VPRating AI Coaching?

The lines depict the exact track areas where the most time can be gained by improving the driving or the vehicle setup. The section might be the entry, the apex, or the exit of turn, or even a combination of them. VPRating will indicate one area with red and one with orange colour, where red is the area in which the most time can be shaved off.

02. How does VPRating AI Coaching work?

The VPRating AI algorithm identifies and simulates the perfect lap your vehicle could achieve at the specific session and track. It then compares your session’s best lap with the perfect simulated lap and provides you with the areas of the track where you can improve the most.

03. Which factors affect the vehicle's Acceleration figure?

The Acceleration is being affected by the power to weight ratio, Cd (drag coefficient), gear ratio, slipstreaming, tire pressures and alignment.

04. Does the slipstreaming affect the vehicle Acceleration and the Driving Score?

Yes, the slipstreaming results in higher Acceleration figures. Also if the slipstreaming is not consistent, it may result in lower Driving Scores.

05. What is the VPRating Vehicle Capability (VC) ?

The VPRating VC is an index number that indicates the performance of the vehicle for the given track and conditions. The bigger the number is, the faster the vehicle is at the specific track.

06. How can I compare two different laps using the VPRating data ?

A downloadable .vbo file is available for every session providing the driving data graphs in order to further analyse or compare different laps.

07. Can I compare Driving Scores from different race tracks?

In many cases, this is true. However, there are instances where the morphology between tracks differs significantly. Some tracks are more technical than others, posing a greater challenge in achieving top driving scores. Therefore, VPRating advises comparing and using Driving Scores from the same track as a reference.

08. Does a better lap time give me more chances for a good Driving Score ?

Given that you have the same or worse vehicle capabilities, a better lap time will result in a better Driving Score.

09. My lap time is worse than the previous session but my Driving Score is better. Why did this happen?

This might happen for various reasons but most probably the overall grip level, due to track conditions or tyre wear, may be lower which results in a less capable vehicle. You were awarded a better Driving Score because you managed to use more efficiently the currently available vehicle capabilities.

10. Any high Driving Score tips?

Use a certified instructor and in case you feel fading on your brakes, tyres, or engine power, cool down your vehicle and stop your session. After any issues have been resolved try a new session where you will have more chances for a better Driving Score.


11. Any high Driving Score technical tips?

A solid, balanced and reliable vehicle can provide consistent performance and more chances for high Driving Scores. Also consider using a vehicle that suits your driving skills.

12. What happens if the driver produces less or more Lateral g due to his driving style?

The VPRating algorithm is able to identify multiple driving styles and therefore to provide accurate Lateral g information regardless of the driving style. Obviously a minimum driving effort is required and as it is known, the power of a tool lies in the hands of its user.

13. What if the user is not able to push his vehicle at it's limits?

In this case a low Driving Score will be provided due to a relatively slow lap time. If the user drives slow, up to a certain extent, the driving session will be marked as INVALID.

14. With what kind of vehicles will VPRating work?

At the moment VPRating works with all cars, motorcycles, go-karts, e-scooters and trucks. Check Terms 5. for some results related exceptions.

15. Is it ok if I don't have a track focused vehicle?

Absolutely, this is the main purpose of VPRating. As long as your vehicle is well maintained and performs consistently, it should enable you to focus solely on your driving.

16. Where can VPRating be used?

VPRating can be used at Racetracks, Autocross events, Hillclimbs and more or less at any closed course circuit.


All those who use “Vehicle Performance Rating” [VPRating] do so at their own risk and responsibility. Each user or, in the case of minors or persons who do not have full legal capacity and liability, the responsible adult agrees and acknowledges that:

1.1  They are aware of the inherent element of risk involved in the sport and accept responsibility for the exposure of themselves, others, other property and their own vehicle to such inherent risk whilst using VPRating.

1.2  They are solely liable and responsible for the safety of themselves, their vehicle and their other properties.

1.3  They accept responsibility for any injury, damage and indirect damage.

1.4  Their vehicle is in good order, properly maintained and they are officially licenced, fit and healthy to drive the vehicle.

1.5  VPRating bears no responsibility or liability for any injury, damage, indirect damage or loss to the extent that such occurred while using any aspect, characteristic, data, mechanism or item otherwise related with Vehicle Performance Rating and the equipment that Vehicle Performance Rating provides and/or is connected with.

1.6  They accept the VPRating results.

1.7  They accept that VPRating may update the software, firmware, or hardware that VPRating use.


“Vehicle Performance Rating” [VPRating] works on any kind of car, kart, motorbike, e-scooter or truck where the GNSS device has been properly fitted.


3.1  Lap. This is the actual lap number.

3.2  Driving Score [%]. This is the Driving Score of the lap.

3.3  Lap time [m]. This is the logged time of the lap.

3.4  Min Apex Speed [km/h]. This is the minimum logged speed at the turn of the smallest ratio during the lap.

3.5  Max Speed [km/h]. This is the maximum logged speed during the lap.

3.6  Distance [metres]. This is the covered distance during the lap.

3.7  Acceleration [g]. This is the average of the best longitudinal accelerations, at the straight lines of the session or the lap.

3.8  Lateral [g]. This is the maximum sustained lateral grip of the session or the lap.

3.9  Braking [g]. This is the maximum sustained deceleration of the session or the lap.

3.10  VC [index].  This is the vehicle capability index of the session or the lap.

3.11  AI Coaching [Ayrton].  Advanced insight of the two turns of the track where the driver can gain the most time by improving his driving or the vehicle setup.


4.1 ASTERISK. VPRating realised that the actual performance of the vehicle may not match the data collected during this session. [*] at Driving Score number.

4.2 LOW GPS. Low accuracy of GNSS data. Only Lap time, Speed and Distance are provided.

4.3 INVALID. Τhe VPRating algorithm realised that the actual performance of the vehicle does not match the data collected during this session. Only Lap time, Min apex speed, Max speed and Distance are provided.

4.4 TRACK LIMIT. Track limits violation. No results are provided.

4.5 INVALID (DISTANCE). Not enough data, driven during the driving session.


 “Vehicle Performance Rating” [VPRating] is designed to provide a unique combination of data at a high level of accuracy. However the accuracy of VPRating results may be compromised at some extent in the cases listed below:

5.1  Significantly different traction level on specific part of the track. Reasons might include a very bumpy section, a part of the course where there has been a liquid spill, a very wet spot while the rest of the route is dry, etc. (possibility for strict Driving Score).

5.2 Vehicles that due to their downforce, can produce significantly higher lateral grip levels during turns of the specific track. This might apply at vehicles that exceed 1.7g Maximum Sustained Lateral Grip.

5.3  Users who for any reason don’t feel comfortable pushing their vehicle close to its limits. Usually this can happen when they are not familiar with the track, or with the vehicle, or a combination of the two.

5.4  Laps with traffic.

5.5  Sessions with “short shifting”.

5.6  Endurance driving sessions.

5.7  Rainy conditions may impact Longitudinal Acceleration metrics. However, this does not influence the actual simulation.

5.8  Short tracks may impact Longitudinal Acceleration metrics. However, this does not influence the actual simulation.


6.1 Current version: 1.9.6

Active Duration: 29/11/2022, 00:01am UTC time-now


  • Lateral calculation for tracks longer than 2000m
  • Ayrton AI Coaching

6.2 Software update applies in every further VPRating action. All existing Personal, Overall and VPRating League results are updated accordingly.

6.3 Previous version: 1.9.5

Active duration: 29/4/2022 – 28/11/2022