Porsche

Walker was a passenger in a Porsche a friend was driving when it hit a pole and burst into flames in November 2013.

US media report that a wrongful death lawsuit has now been filed by Walker's daughter Meadow, alleging the carmaker took safety shortcuts.

Porsche has not yet publicly responded to the claims.

After a four-month investigation, police said the Porsche Carrera GT, driven by Walker's friend Roger Rodas, was travelling at 94mph (151kph) in a 45mph zone when it hit a lamp post.

The purchase raises Porsche's share of Volkswagen AG's ordinary shares to 52.2 percent, and its stake in VW's subscribed capital to 32.4 percent.

The move comes days after Volkswagen was hit by a scandal over allegedly rigged U.S. emissions tests in diesel vehicles.

Porsche said in a statement Saturday that it considers the purchase "as a strong commitment to its core investment and emphasizes its role as an anchor shareholder" in Volkswagen.