Young father and his four-year-old son are killed in a horror T-bone crash - with photos of the wreckage showing the extent of the collision

 

A father-of-three and his little boy have died in a horror high speed crash on Australia Day.

A limited edition Holden Commodore sedan and red Mitsubishi Lancer collided at an intersection in the Brisbane suburb of Ransome shortly before 9am on Sunday.

The Holden driver, Chris Vrbesic, 37, from Manly West, died at the scene.

His four-year-old son was rushed to Queensland Children's Hospital, where he later died from his injuries. 

The driver and sole occupant of the red Mitsubishi, a 29-year-old Birkdale man, has taken to hospital with minor injuries.  

The Forensic Crash Unit has launched an investigation, which will include whether speed was a contributing factor.

A shattered friend of Mr Vrbesic struggled to comprehend the tragedy when he visited the scene on Sunday afternoon.

'The guy was a family man, he helped so many people, he had such a big f**king heart,' he told the Courier Mail.

'I think you're going to find this will be one of those tragedies ... thousands of people it is going to affect.'

'I just can't understand how something like this has happened. It just doesn't make sense.'

Photos from the scene showed the blue Holden completely destroyed and flipped on its side in a ditch. 

The red Mitsubishi suffered substantial damage to its front while the road was covered 

It's understood the cars T-boned at the intersection.

An automotive enthusiast, Vrbesic was a project manager for Innate Developments, which specialises in residential and commercial construction. 

Witnesses recalled seeing emergency responders frantically performing CPR on Mr Vrbesic as his son was pulled from the wreckage.

Another said it was the first fatal crash she'd seen at the intersection in more than 30 years. 

Police have urged witnesses or anyone with relevant CCTV or dashcam to come forward.