Musk says you can now buy a Tesla with Bitcoin

"You can now buy a Tesla with Bitcoin," according to the Technoking. "Tesla (TSLA) is using only internal & open source software & operates Bitcoin nodes directly.""Bitcoin (BTC-USD) paid to Tesla will be retained as Bitcoin, not converted to fiat currency, Elon Musk continued on Twitter. " Pay by Bitcoin capability available outside U.S. later this year." TSLA +1.4% premarket to $671/share, while Bitcoin advanced another 4% overnight to $56,253.Last week, Elon Musk and Zach Kirkhorn changed their titles to Technoking of Tesla and Master of Coin, respectively.Following Tesla's $1.5B purchase of Bitcoin in February, Wedbush analyst Dan Ives said the Street is starting to "tie Bitcoin and Tesla at the hip. Although Tesla made a billion paper profit in its first month owning the digital gold, it comes with added risk."