General Motors Co., in its final round of senior executive shake-ups following its July 10 exit from Chapter 11 bankruptcy, today named Mark Reuss as vice president of global vehicle engineering.

Reuss, 45, will replace GM veterans Jim Queen, 60, group vice president, global engineering, and Ed Koerner, 59, GM North American vice president, engineering, who both elected to retire Oct. 1.

"Our goal was to streamline our leadership team and put some of our best executives in positions where they can use their diverse perspectives and extensive global experience to create the new GM," GM CEO Fritz Henderson said in a statement.

Reuss most recently was president and managing director of Holden in Australia. He joined GM in 1983 as a student intern and has held several top positions since 2001 before joining Holden in 2008.

Queen has headed GM's worldwide engineering operations since March 2005. He has worked for GM since 1977, when he finished his post-college stint with the U.S. Marines. He began with engineering positions at Buick before joining the powertrain division of Buick-Oldsmobile-Cadillac, where he was chief engineer of the Quad-4 engine.