A scary and mysterious 'car cloning' plot has been revealed by a motorist who received a speeding fine in a suburb he's never been to.

Constantinos Siavelis, 26, from Lower Templestowe, Melbourne, found a speeding infringement in the mail.

It told the aged care worker he'd been caught travelling 123km/h in a 100km/h zone in his silver BMW at 8.40pm on May 15.

Constantinos Siavelis was going about his day when he checked the mail this week and found a speeding infringement. Picture: 9NEWS (Nine)

But when he took a second glance at the photo attached to the $317 infringement notice, the charge didn't stack up.

"When I checked the location, it somewhere on the Western Ring road near Broadmeadows," Mr Siavelis told 9news.com.au.

"I have never been there. It was totally bizarre."

The BMW travelled 123km/h in a 100km/h zone on the Western Ring Road on May 15. Picture: Supplied (Nine)

"The fine was on a Tuesday evening and I was pretty sure I was at work.

"So I double checked with my manager and she told me I was there."

He first thought someone had maybe stolen his car, taken it for a joyride while he was at work.

But that didn't add up because he drove home that night and didn't notice anything wrong with his vehicle.

But when he took a second glance at the photo attached to the $317 infringement notice, it immediately didn’t add up. Picture: 9NEWS (Nine)

He looked at the photo again and it immediately dawned on him – this wasn't his car at all.

"When I looked closer at the photograph I noticed the plates were black and written with white letters," he said.

"My car has white plates with blue letters. Then I noticed the headlights are slightly different as well."

Someone was driving a nearly identical model and colour BMW to Mr Siavelis, with the same rego.

Can you spot the difference? (Nine)

"Two owners have the same plates, basically the same model, I don’t know how possible this is to be a mistake, what are the chances?"

And it seems the chances of it being a coincidence are not good, VicRoads said.

It appears someone has illegally cloned Mr Siavelis' car.

VicRoads said they do not issue more than one set of number plates to a registered owner and this is not a mistake.

This is the infringement notice sent to Mr Siavelis. Picture: Supplied (Nine)

"If people suspect their number plates have been cloned, they should immediately contact Victoria Police," a spokesperson said.

"It is illegal to display number plates that have not been issued by VicRoads."

Has something like this happened to you? Email us sedavidson@nine.com.au .

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Victoria Police said it’s now investigating the case but would not elaborate.

The cloners have not been caught and it’s unclear why Mr Siavelis was targeted.

Luckily, he’s been told to contact Fines Victoria, who will cancel his infringement notice.

The only place Mr Siavelis drove that day was to and from work in Lower Templestowe. Picture: 9NEWS (Nine)

"I'm just glad that it's a speeding fine because what it was something worse and I got the blame for it," he said.