Cadillac will give fans a first glimpse of its updated V-Series.R GTP cars at Daytona International Speedway, as the brand stages an IMSA-sanctioned test from November 14–16, 2025. The anticipated Connor Zilisch Daytona endurance test marks a pivotal moment for the 19-year-old NASCAR standout and Colton Herta, the experienced 25-year-old IndyCar driver, as they both prepare to pilot Cadillac’s prototype machines in this high-profile event.
During the test, Zilisch will drive the #31 Whelen Action Express Racing entry, while Herta takes the wheel of the #40 for Wayne Taylor Racing. This lineup exemplifies Cadillac’s commitment to balancing emerging talent with proven competitiveness in shaping its 2026 endurance-racing plans, with both drivers aiming to impress during their time on the legendary Daytona track.
Rising Star Connor Zilisch Steps Into the Spotlight
Connor Zilisch has drawn significant attention beyond his NASCAR roots, building momentum after securing a runner-up finish in the recent Xfinity Series season. His prior LMP2 class triumph at the Rolex 24 highlights his prowess on demanding circuits, showcasing adaptability essential for endurance racing. This Daytona test stands as Zilisch’s next opportunity to stake his claim in another high-stakes discipline.
Cadillac is assessing Zilisch for a key spot as a potential fourth driver in the 2026 Rolex 24 at Daytona, underlining his growing stature in the paddock. In his own words,
“Hopefully, we’re going to make the most of it and see if this can lead to more opportunities for me in the Cadillac because it would be super cool for me to race at the highest levels of endurance racing.”
— Connor Zilisch, driver
For Zilisch, the upcoming test could be the launchpad for a long-term future within the Cadillac program, demonstrating the brand’s proactive approach in nurturing promising young drivers primed for international competition.
Colton Herta Brings Versatility and Experience
Colton Herta enters the Daytona testing phase with a background rich in speed and technical acumen, forged from years at the top level of IndyCar racing. Eager for his first stint behind the wheel of the Cadillac V-Series.R prototype, Herta will work alongside Jordan Taylor and Louis Delétraz in the #40 car as the team eyes forthcoming challenges at renowned endurance events like the Rolex 24 at Daytona, the 12 Hours of Sebring, and Petit Le Mans.
Herta’s calendar beyond IMSA is packed—he will drive for Hitech TGR in FIA Formula 2 and serve as a reserve driver for Cadillac’s Formula 1 effort, stamping his credentials as a multi-talented racer. His role in the Daytona endurance test demonstrates Cadillac’s trust in his feedback and ability to help refine the updated 2026 specification, all while gaining invaluable track time ahead of a demanding new season.
Cadillac’s Ambitious Path Toward 2026
The participation of both Connor Zilisch and Colton Herta reflects Cadillac’s deliberate strategy to combine innovation from emerging figures with the steady performance of more experienced hands. The Daytona evaluation will showcase upgrades to the V-Series.R, utilizing a development ‘joker’ to fine-tune its aerodynamic package in anticipation of the 2026 competition. Over five test sessions, the program aims to perfect data gathering, improve car balance, and ensure reliability under the rigors of endurance racing.
Other notable Cadillac drivers, including Filipe Albuquerque, Ricky Taylor, and Will Stevens, will contribute their feedback alongside Zilisch and Herta during this crucial testing period. The event sets the stage for Cadillac’s public unveiling of its revamped endurance machine, just as focus intensifies ahead of another attempt at the Rolex 24 at Daytona.
With an eye on both new and seasoned talent, Cadillac is preparing for what could be a landmark year in long-distance motorsport. The forthcoming Daytona test will not only put the spotlight on an advanced V-Series.R and the dynamic driving duo of Zilisch and Herta, but it will also shape the trajectory of Cadillac’s 2026 campaign and signal the brand’s commitment to sustained excellence in endurance racing.
