If you're the richest person in the world then why not splash excess cash on an old car, eh? Well, you'd hope that Elon Musk ...

Elon Musk has become the first person in the world to be worth $400billion - and the figure is so vast that the tech mogul ...

According to Bloomberg's Billionaires Index, Musk's net worth has increased an incredible $218 billion this year. The jump is ...

His net worth now stands at around $440 billion (£345 billion), according to the Bloomberg Billionaires Index - more than ...