A former paratrooper was killed when he was knocked down and killed by a driver he was trying to exchange details with following a crash, a court heard.

Kenneth Kiley, 75, had been returning home from a dinner with wife Marion when the couple were involved in a collision with another car.

The Kileys' car spun 180 degrees and knocked against a street sign as the other car - a blue Vauxhall Corsa - drove off with the occupants ''laughing'' it was said.

Mr Kiley got out of the car and began to walk in the direction of the Corsa with pen and paper in hand to get the driver's insurance details.

But Corsa driver Dario Carboni, 25, sped back down the road and ''put his foot down'', the court was told.

It hit and killed Mr Kiley and then sped off again, prosecutors say.

Carboni is on trial at Bristol Crown Court for murder, manslaughter and death by dangerous driving - all three of which he denies.

He claims the Corsa was not being driven by him but by Patrick Cunnington - who was also in the car at the time.

Prosecutor Adam Feest described the second road traffic collision that led, moments later, to Mr Kiley's death, just yards from his home in Swindon, Wilts.

He said: "On July 8 last year, at around 8.30pm, Mr Kiley and his wife were returning home from a dinner at Toby Carvery in their red Toyota Yaris.

"They were coming down Westfield Way in Swindon in a southerly direction, and getting ready to turn right on a roundabout into Southernwood Drive, where they live.

"A collision took place between their car and a blue Corsa travelling in the opposite direction.

"They came together on the roundabout, and the Kileys vehicle was turned nearly through 180 degrees, and ended up against a street name road sign.

"The blue Corsa did not stop at the scene. It turned left into Southernwood Drive and drove out of sight."

Mr Feest added: "After their car came to rest, Mr Kiley got out of the passenger seat with a pen and piece of paper.

"He began to walk off in the direction of the blue Corsa, no doubt to get their insurance details."

Mr Feest said Southernwood Drive is a cul-de-sac, with a number of small roads leading off it that are also cul-de-sacs.

He said the blue Corsa turned down one of these roads, before turning round at the end and driving back just two minutes later.

The Corsa then drove to the end of Southernwood Drive and, realising this was also a cul-de-sac, turned around and began to drive back in the direction of Westfield Way, the court heard.

Mr Kiley then stepped into the road from behind a parked car - and was knocked down and killed by the blue Corsa, it was said.

Mr Feest said: "It is the Crown's case that Mr Carboni was still driving the car at this point."

He added that a number of residents overheard either the first or the second collision, and came out to help Mrs Kiley, who was still in her car.

A number of residents describe hearing a screeching of car tyres followed by a "loud thud" at the moment that Mr Kiley was hit.

Local Thomas Blackwood ran out into the street with his mother after seeing Mr Kiley lying face down, with his head on the pavement and body in the road.

Mr Blackwood said Mr Kiley was "bleeding heavily all over his face" and had "severe swelling and bruising" on the side of his head.

Other neighbours helping Mrs Kiley at the scene of the first collision recall seeing the blue Corsa speeding off again following the second.

Mr Feest said the Corsa, with Carboni and Cunnington inside, sped off down Westfield Way before turning into another road a quarter of a mile further south.

The two were then seen by witnesses to jump out the car and run from the scene.

One couple, Rebecca and Matthew Norman, overheard the two men inside laughing and talking as they drove from the scene of the first road traffic collision, it was said.

Mr Norman claims he heard one of the car's occupants say something about losing a licence.

The Corsa lost its left-side wing mirror following its first collision with Mr and Mrs Kiley's car, the court heard.

It also sustained a significant dent in the middle of the windscreen, as well as dents above the driver's wheel arch and just above the number plate on the right-hand side.

Cunnington was the first of the Corsa's occupants to be arrested by police.

He told police that he had been in Swindon that weekend and had been "up to no good", and had been selling cannabis with Mr Carboni.

He said the pair had been dropping off some cannabis in north Swindon, with Carboni driving.

Mr Cunnington claimed to police that he told Carboni to stop after the first collision with Mr and Mrs Kiley's car, as they needed to check whether everyone was alright.

He then said that he saw Mr Kiley come out into the road from behind the parked cars, and said he was waving his arms around.

He said Mr Kiley could be seen quite clearly, and told Carboni to stop otherwise he would hit Mr Kiley - but he claims that instead of stopping, Carboni put his foot down.

Mr Cunnington said that Carboni continued driving away from the scene before ditching the car.

When he asked Carboni why he did not stop, the defendant said that he did not have a licence, Mr Cunnington claimed.

The trial continues.