Currently used (June 2009) Saudi Arabia private car plate (series began in 1996)
Current (November 2009) Saudi Arabia private vehicle plate

Image from ALPCA 10252

Current (2007 series) Saudi Arabia export license plate
Export plates have the grey strip and triangle to the right
Private vehicle plates have a white stripe and a circle symbol

Image sent by Andrew Pang of Arlington, Virginia

Current style (May 2008) Saudi Arabia private car license plate.
Style was first introduced in 1996

Image sent by Sean Pierre of Miami, Florida