| Race details | |
|---|---|
| 8th round of the 2023 IndyCar season | |
 Layout of the Road America circuit | |
| Date | June 18, 2023 |
| Official name | Sonsio Grand Prix at Road America |
| Location | Road America, Elkhart Lake, Wisconsin |
| Course | Permanent road course 4.014 mi / 6.460 km |
| Distance | 55 laps 220.55 mi / 354.94 km |
| Pole position | |
| Driver |  Colton Herta (Andretti Autosport with Curb-Agajanian) |
| Time | 01:40.1945 |
| Fastest lap | |
| Driver |  Will Power (Team Penske) |
| Time | 01:42.8921 (on lap 45 of 55) |
| Podium | |
| First |  Álex Palou (Chip Ganassi Racing) |
| Second | Josef Newgarden (Team Penske) |
| Third |  Pato O'Ward (Arrow McLaren) |
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The 2023 Sonsio Grand Prix at Road America presented by AMR was the eighth round of the 2023 IndyCar season. The race was held on June 18, 2023, in Elkhart Lake, Wisconsin at Road America. The race consisted of 55 laps and was won by Álex Palou.
Unbeknownst to all, this would be the final race of the season for Simon Pagenaud as during practice for the next round, Pagenaud would have a horrific crash that would end his season and tenure with Mryer/Shank Racing due to lingering injuries.