The Formula 1 test driver who lost her eye after crashing during a team exercise underwent further facial surgery on Friday and is no longer in critical condition.
Maria de Villota was on her first official test with the Marussia team on Tuesday when she hit the team's support truck in a straight-line exercise at an airfield in England.
De Villota initially underwent surgery late Tuesday and the follow-up procedure was planned if her condition remained stable.
"This morning the medical team were sufficiently happy with her progress to allow the operation to go ahead," Marussia said in a statement. "The surgeons successfully completed the next phase of surgery required to address Maria's facial injuries.
"After the lengthy initial procedure, which commenced on Tuesday and concluded on Wednesday, today's secondary operation took significantly less time. Since the operation today, Maria's condition in relation to the head trauma she received has further improved, to the extent that she is now 'serious but stable.'"
The team believes this marks "significant progress" for the 32-year-old Spaniard.
"Whilst Maria remains acutely ill, this confirms that she has been responding well to the treatment she has received since her accident," the statement said.