Just a way for Aston-Martin to get lots of media exposure without spending much money.
On the other hand, think about other recent ventures into the aircraft sector by auto OEMs that involved significant money. The most obvious being Honda's light jet. The aircraft has finally entered service, but Honda spent massive amounts of money on development and is currently losing a significant amount on each one they sell.
https://www.flightglobal.com/news/ar...-on-ho-449741/