June 29th, 2013 (F1Plus / Chris Cameron-Dow) - When Paul Di Resta set the fifth fastest time in qualifying for tomorrow's British Grand Prix, it looked like he was set for a strong result in the race. But when his car when through scrutineering after qualifying was completed, it was found to be underweight by 1.5 kilograms. As a result, it is likely that he will be excluded from qualifying and will have to start from the back of the grid.
Article 4.1 of the Technical Regulations states: "The weight of the car must not be less than 642kg at all times during the Event." The weight of the car includes the weight of the driver but excludes fuel. When Di Resta's car was drained of fuel it was found to weigh 640.5kg, which means in terms of the regulations it is underweight.
The Sporting Regulations state: "The relevant car may be excluded should its weight be less than that specified in Article 4.1 of the Technical Regulations when weighed [during qualifying or after the race], save where the deficiency in weight results from the accidental loss of a component of the car." As a result, it is likely that Di Resta will lose his fifth place grid position and be demoted to the back of the grid.
The case has been referred to the stewards by FIA Technical Delegate Jo Bauer for consideration.