Tycoon Elon Musk raised a few eyebrows when he named his newborn son after the A12 road from London to Suffolk.

He and his partner, the singer Grimes, revealed they had named the baby X Æ A-12.

The X part, he explained, is an unknown variable, while the Æ part is an orthographic ligature (obviously).

But it was the Space X and Tesla boss’ inclusion of the A12 dual carriageway that caused most surprise.

He told the editor of California Mother and Baby magazine, Lorraine Fisher, 34, that the A12 was close to his heart for two reasons.

“Firstly, I have holidayed on the Suffolk coast for many years, and we always have to drive up the A12 to get there from Heathrow.

“We love the winding nature of the carriageway and its many potholes.

“Plus, we get to stop off at interesting places along the way. Like Witham and Ipswich.

“Secondly, the A12 was formerly used as an unofficial test track for my Tesla cars.

“That was until they put all those blasted average speed cameras up between Colchester and Ipswich. My drivers were getting more points than Ipswich Town FC.”

Young A12 and his mum are said to be doing well.

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