2006 | NASCAR | ATP International Series | World Series | 2006 in music | World Series of Poker | ATP International Series Gold | Star Trek: The Original Series | ATP World Tour 250 series | Buffy the Vampire Slayer (TV series) | 2006 FIFA World Cup | series | ATP World Tour 250 Series | Gossip Girl (TV series) | Casualty (TV series) | 2006 Commonwealth Games | House (TV series) | The Twilight Zone (1959 TV series) | One Tree Hill (TV series) | limited series | Lost (TV series) | NCIS (TV series) | 2006 Central American and Caribbean Games | Swimming at the 2006 Central American and Caribbean Games | 90210 (TV series) | The Outer Limits (1963 TV series) | Sprint Cup Series | Monk (TV series) | Angel (TV series) | The Avengers (TV series) |
In 2006, Sadler shared the ride with development drivers Stephen Leicht, Matt McCall, and Justin Diercks, with Marc Goossens driving on road courses.