Police said they had studied the marks left by one of the Lamborghini’s tyres and that “all the tests carried out so far indicate that the driver of the crashed vehicle was Diogo Jota”.
The expert report is being prepared for the courts on the accident, and their investigation is understood to have been made more complex by the intensity of the fire that almost completely destroyed the car.
The accident happened 11 days after Jota had married his long-term partner Rute Cardoso in Portugal. The couple had three children.
The brothers had been heading to the Spanish port of Santander so Jota could return to Liverpool for pre-season training.
Their funeral took place in their hometown of Gondomar, near Porto at the weekend.
Tyre marks were reportedly visible about 100m (330ft) from the moment of impact.
Although there had been suggestions that the asphalt on the road was uneven where the crash took place, police told Spanish media it was not an accident “black spot” and the road should have been driveable beyond the speed limit of 120km/h (75mph).
