The best friend of a girl killed by an out-of-control Lamborghini has told an Adelaide court about the last moments they spent together before the sports car "rotated and diagonally came towards" them.
Alexander Campbell, 37, is on trial in the District Court after pleading not guilty to killing Sophia Naismith and injuring Jordyn Callea by dangerous driving.
Ms Callea told the trial she and Sophia had spent time at her house, a fast-food restaurant, on the tram and Glenelg that night before deciding to walk to the bus intersection to travel to another friend's house.
The court heard there was "hardly any traffic" when the two girls were walking along Morphett Road in Adelaide's southwestern suburbs about 9pm.
Ms Callea told the court the last thing she could recall was a darkly coloured car "zoom" past them as they walked side-by-side before a white Lamborghini approached.
"It almost felt like it stopped directly diagonally in front of us, rotates a little bit and then it came at us," she told the court.
The now 18-year-old said she did not remember anything else until she woke up lying on the ground in the car park.
"There was an instant shock, I didn't really know what was going on, I was lying on the floor," she told the court.
"I did move my head and see what's going on."
The court heard she could see Sophia lying on the ground behind the white Lamborghini about five or six metres away.
The trial also heard from Kerry Zerillo, who saw the crash, but told the court she did not realise pedestrians had been struck at the time.
She told the court she had followed the Lamborghini and a black car travelling side-by-side on Morphett Road for about five minutes before the crash.
"He took off really fast and the car swung into the bushes … to the footpath.
"I slowed down, I looked into the shop that he went into, and he had his car door opened and I noticed the driver was ok."
Driver's friends give evidence
Two friends of Mr Campbell's, who had been at a car show together that night and were travelling in convoy back to the northern suburbs also gave evidence.
Adam Gabrieel — who was a passenger in the car travelling alongside Mr Campbell's Lamborghini — told the court they were travelling "on the speed limit", were not driving erratically and he did not hear any heavy acceleration from the Lamborghini.
"We got about 100 metres past (the Chinese restaurant) and Simon asked where Alex was and I looked in the mirror and I couldn't see him," he told the court.
"And then I heard a bang, and I wasn't sure if it was Simon's car so … we did a U-turn, that's when we came across the accident.
"It just sounded unusual."
The court heard Mr Gabrieel got tablecloths from the restaurant and covered Ms Callea as it was a cold night.
Another "good friend" of Mr Campbell's, Joel Armstrong, told the court his friend was driving "lawfully and respectfully" that night and was never speeding.
Four witnesses told the court they had seen the white Lamborghini lose control and "fishtail" at a busy northern Adelaide intersection hours earlier.
But one witness, Robert Hay, said it sounded like the car lost a bit of traction and overcorrected, but the driver didn't lose control or fishtail.
The trial before Judge Paul Muscat continues.
