Red Bull officially announced Allmendinger as part of its driver lineup October 25, 2006.
He made his NASCAR debut in the Craftsman Truck Series driving for Bill Davis Racing at New Hampshire International Speedway on September 16, 2006, in the No.
24 Toyota Tundra.
He crashed his primary truck in qualifying but started the race 32nd in a backup truck from teammate Bill Lester and finished on the lead lap in 13th.
He also competed at the Talladega Superspeedway in October with a finish of fifth.
In his third career truck series start, he qualified in second place at Atlanta and led five laps before he wrecked and finished 34th.

Allmendinger attempted his first Nextel Cup Series event at Atlanta in October 2006 driving the No.
84 Red Bull Dodge Charger; however, due to qualifying being rained out, a lack of owner's points prevented Allmendinger from making the race.
He also attempted to make the race at Texas Motor Speedway, failing to qualify again.
Allmendinger and Brian Vickers were named Red Bull's drivers for 2007, with Allmendinger piloting the team's No.
84 Toyota Camry with Vickers in the team's No.
83.
Red Bull officially announced Allmendinger as part of its driver lineup October 25, 2006. He made his NASCAR debut in the Craftsman Truck Series driving for Bill Davis Racing at New Hampshire International Speedway on September 16, 2006, in the No. 24 Toyota Tundra. He crashed his primary truck in qualifying but started the race 32nd in a backup truck from teammate Bill Lester and finished on the lead lap in 13th. He also competed at the Talladega Superspeedway in October with a finish of fifth. In his third career truck series start, he qualified in second place at Atlanta and led five laps before he wrecked and finished 34th.
Allmendinger attempted his first Nextel Cup Series event at Atlanta in October 2006 driving the No. 84 Red Bull Dodge Charger; however, due to qualifying being rained out, a lack of owner's points prevented Allmendinger from making the race. He also attempted to make the race at Texas Motor Speedway, failing to qualify again. Allmendinger and Brian Vickers were named Red Bull's drivers for 2007, with Allmendinger piloting the team's No. 84 Toyota Camry with Vickers in the team's No. 83.
A. J. Allmendinger