| Race details | |
|---|---|
| Race 12 of 14 in the 2006 Champ Car season | |
 Road America Track Layout | |
| Date | September 24, 2006 |
| Official name | Grand Prix of Road America |
| Location | Road America Elkhart Lake, Wisconsin, United States |
| Course | Permanent Road Course 4.048 mi / 6.515 km |
| Distance | 51 laps 206.448 mi / 332.265 km |
| Weather | Sunny with temperatures soaring up to 63 °F (17 °C); wind speeds up to 15.9 miles per hour (25.6 km/h) |
| Pole position | |
| Driver | Dan Clarke (CTE Racing-HVM) |
| Time | 1:55.123 |
| Fastest lap | |
| Driver | Sébastien Bourdais (Newman/Haas Racing) |
| Time | 1:44.133 (on lap 26 of 51) |
| Podium | |
| First | A. J. Allmendinger (Forsythe Championship Racing) |
| Second | Bruno Junqueira (Newman/Haas Racing) |
| Third | Sébastien Bourdais (Newman/Haas Racing) |
The 2006 Grand Prix of Road America was the twelfth round of the 2006 Bridgestone Presents the Champ Car World Series Powered by Ford season, held on September 24, 2006 at Road America in Elkhart Lake, Wisconsin. Dan Clarke took the pole, the first and only of his Champ Car career. A. J. Allmendinger won the race, his fifth and last win of the year and his Champ Car career. The event is most remembered for a horrific crash involving Katherine Legge that resulted a 42-minute red flag. The rear wing on her car failed just before the high speed Turn 11 Kink, the unexpected loss of downforce caused her to crash violently into the catch fence, demolishing the car. Legge was uninjured in the incident.