Grant Denyer has opened up about the terrifying hallucinations he had while recovering from his car accident in 2008.

The Gold Logie nominee cheated death in a horror rally car crash in March 2008, in Melbourne. The injuries were extensive, leaving the star in bad shape.

The monster truck, which was reported to have crumpled up on impact, left Denyer with a broken back and the threat of never having the ability to walk again.

Ten years on, both he and wife Chezzi Denyer have opened up about the challenges the couple both had to deal with in the face of tragedy.

The “hardcore” pain Grant faced almost cost him his relationship with his wife, and further revealing the hallucinations he suffered from scared him deeply.

Speaking to the Daily Mail, the TV host explained the difficulty of dealing with horror “nightmares.”

“I remember I could never distinguish my dreams from reality – or turns out, my nightmares which I was having every night,” he said.

“Often the hardest part of an injury is the rehabilitation. And the medication that a hospital can put you on, often you're not prepared for the side effects.”

Since then though, the Denyer family are thriving, and his health is better than ever.

“It really was an uncomfortable and scary experience, but thankfully I'm 100 per cent and all good now,” he explained.