Hellocar is another UK car-buying startup closing doors – The used-car market seems ripe for disruption, not least in terms of customer service and creating a better experience online. However, if recent events are anything to go by, it is a hard nut to crack. Following Carspring going quiet after Rocket Internet pulled its funding, another U.K. car-buying startup looks to be shutting up shop. According to sources, London-based Hellocar has ceased trading, and hasn’t listed any available cars for sale since at least late October. The startup was incubated by Founders Factory before being “spun out,” and in February announced it had raised £1 million in a funding round led by JamJar Investments (the venture capital fund run by the Innocent Drinks founders) and Zoopla founder and CEO Alex Chesterman.

Space start-up Xcor Aerospace fails to find a backer, files for bankruptcy – Once a darling of the Mojave aerospace start-up scene, space plane builder Xcor Aerospace has filed for Chapter 7 bankruptcy. A court document filed last week with the U.S. Bankruptcy Court for the Eastern District of California says the company has more than 100 creditors and assets estimated between $1 million and $10 million.

Doppler Labs shuts down – Now comes news of Doppler Labs, a maker of “smart” high-end ear buds announcing it is shutting down.The announcement came as a blog post on its website.

TechShop DIY Incubators shut shop – TechShop, a chain of membership-based, open-access, do-it-yourself (DIY) workshops and fabrication studios annou