- Carry out a road test on traffic free roads in safe conditions, following the highway code.

- Before proceeding with the test, check the inflation pressure of the tyres for the two vehicles, restoring the values to the correct ones if they are found to be incorrect.

- Also check the condition of the wheel rims, making sure they are not distorted or broken, and replacing them if any faults are found.

- Carry out the test on an uneven road surface, at a speed of 40 km/h to check the capacity of the suspension to absorb the stresses produced by small imperfections (suspension damping) with the consesquent acoustic repercussions inside the passenger compartment.

- Check the capacity of the suspension to absorb the stresses produced by large imperfections and the consequent acoustic repercussions inside the passenger compartment, carry out the road test at a speed of 40 km/h over a route that has a series of potholes.

- Check the rapid damping of any pitching produced by irregularities in the road surface by carrying out the test at a speed of 50 km/h on a straight road with suitably spaced humps/dips.

- This type of test should always be used for comparison with a new vehicle or reference vehicle of the same trim level and engine type, available in the workshop at the time of the test in question.

- At the end of the test in question, assess/rate the driving comfort of the vehicle in accordance with the attached table.

The reference vehicle has a driving comfort default rating of 7.