Brothers were racing before fatal collision, jury told

He said that during the trial, the jury would hear from 10 eyewitnesses who all saw the brothers driving before the crash, and who sometimes saw the BMW leading, and sometimes the Audi.

Others would describe seeing the collision itself, he said, when Jenkins' Toyota Yaris was hit head-on by the red BMW being driven by Abubakr Ben Yousef after his car appeared to lose control and crossed over into the right hand lane.

He showed the jury footage of the two cars overtaking a woman at speed, and another video showing the journey in daylight between Newtown where the brothers' cars were first witnessed, to the crash site near Welshpool.

Ryan Jones, a transit van driver, told the court he was driving at about 50 to 60mph when he noticed headlights up close behind him in his wing mirrors.

"There were no vehicles, to then very quickly lights approaching," he said, describing how the headlights came "aggressively" and "close".

Jones said the car flashed its lights as if wanting him to speed up or move. It then pulled out and back in again due to oncoming traffic.

He went on to describe how the car, which he saw was a red BMW X3, then overtook him on a bend.

He said: "I wasn't very impressed. It was unbelievably reckless and dangerous ...the speed they were travelling, the blind corner, the time of day.

Everything about it."

Jones said in the time it took for the BMW to overtake, he was then aware of a blue Audi A4 alongside, also overtaking him.

He guessed the cars had been travelling between 80 and 100mph.

Jones then described how he saw the BMW in front of the Audi begin to "fishtail" and "slide".

"I don't know if it caught a puddle or dirt... the car was trying to slide side to side, it caught the ditch... the car bolted across the road and hit the oncoming vehicle."

He said he saw a "flash of flame" under the bonnet of Rhys Jenkins' Toyota, which then spun, ending up facing back the way it had come.

The BMW "bounced to a stop" and the Audi pulled up about 10m (33ft) from the crash site, he said.