INDYCAR vs. Formula 1: The Differences Between The Open-Wheeled Series

Former INDYCAR driver and Fox Sports analyst James Hinchcliffe traveled to Austria for the Formula 1 race and used the opportunity to break down the key differences between INDYCAR and F1. He highlights that INDYCAR uses a spec series model where all teams purchase the same designated chassis, while F1 allows constructors to build their own cars with significantly different technical regulations. The article also references Christian Lundgaard's recent victory at Road America and notes the piece was updated on June 25, 2026.