Tesla Inc's aggressive price cuts have ignited demand for its electric vehicles, Chief Executive Elon Musk said on Wednesday, playing down concerns that a weak economy would throttle buyers' interest.

Billionaire Elon Musk said on Tuesday he will step down as chief executive of Twitter Inc once he finds a replacement, but will still run some key divisions of the social media platform.

Billionaire Elon Musk said on Monday he was working "at the absolute most amount...from morning til night, seven days a week" when asked about his recent acquisition of Twitter and his leadership of automaker Tesla Inc .

Billionaire Elon Musk said he paid a visit to Twitter Inc's headquarters in San Francisco on Wednesday, ahead of a court-ordered deadline to close his $44 billion deal for the social media platform.

Their head-mounted flashlights swaying in the darkness, workers at the Bodega Andres Morate vineyards resemble fireflies from a distance as they roll their wheelcarts from one vine to another cutting grape bunches at night.