Only six weeks into custodianship of our Mazda6 and it sits languishing in the office car park.

The reason is a crack in the windscreen, which over one week has spread to more than 12 inches long and has now turned 90 degrees and is making its way over to the driver’s side.

It's not a problem to have replaced, if I could get a replacement screen – the  current estimate from the glass replacement company is a few weeks, maybe longer.

It has been advised that I could continue to drive the car as long as the crack doesn’t impair my vision.

However, as a bonded windscreen is also an integral part of the vehicle body shell and contributes towards overall strength and stiffness, its possible that the 6’s safety could be compromised in the event of a crash.

Car magazine has also suffered from a cracked windscreen and lengthy delays for a replacement on their Mazda6 Tourer.

Car writes: "Current estimates see windscreens landing on the parts shelf a fortnight hence.

"By then, at the current rate of progress, the crack will have traversed the entire windscreen and, via the driver’s door window, begun to invade my reading glasses.

"What interests me most is how the screen went in the first place. No hurtling aggregate, air rifle pellet or even particularly butch beetle has clattered into it."

Like Car, I also didn’t hear or witness the screen being struck, nor are there marks to indicate this. So it remains to be seen if there is a wider problem with Mazda6 windscreens.