Exciting Driver Lineup: ACI Motorsports Expands Entry in 2025 Pirelli GT4 America Series

CHATTANOOGA, T.N. (February 3, 2025) — ACI Motorsports is thrilled to announce an additional entry in the2025 Pirelli GT4 America series, featuring the dynamic driver pairing of Dan Sibille and Loek Hartog. The duo will be piloting the No. 9 Porsche GT4 RS Club sport. Dan Sibille brings extensive experience and proven success, having competed in Porsche GT3 Cup cars for several years, and, most recently, piloting a Porsche GT4 RS in the Porsche Sprint Challenge North America series.

Loek Hartog, an ‘up-and-coming Dutch racer,’ joins ACIMotorsports fresh off a stellar debut season in the Porsche Carrera Cup North America series, where he clinched the ProClass Championship in a dramatic season finale at Circuit of the Americas. ACI Motorsports is honored to welcome both Dan and Loek to the team and iseager to see their combined talents as we elevate our 2025 Pirelli GT4 America program.

“Dan and Loek are equally excited to join ACI Motorsports, especially given our recent successes in Pirelli GT4 America and our Pro-Am class championship in 2024,” said Curt Swearingin, CEO of ACI Motorsports. “With our enhanced race efforts, technical advancements, and increased competitiveness in the series, we’re confident this partnership will elevate our2025 campaign.”

“I’m thrilled to be joining ACI Motorsports and co-driving with Loek for the 2025 Pirelli GT4America season,” said Sibille. “The team’s growth and achievements in recent seasons make this an incredible opportunity.”

“I’m proud to be joining the ACI Motorsports team,” commented Hartog. “I’m eager to help the team build on their previous successes while contributing as a coach and co-driver with Dan inthe Pro-Am class.”

ACI Motorsports is proud to continue its race efforts in the 2025 Pirelli GT4 America season with two entries utilizing the Porsche GT4 RS Clubsport race car.

The Porsche GT4 RS Clubsport (#9), driven by Dan and Loek, will highlight support from several strategic partners, including ChillOut, Gemini Advisory Services LLC, Racing for Children’s and SimCraft. “We’re honored to partner with these “best-in-class” organizations, which represent excellence in driver cooling technology, advisory services for cybersecurity companies, children’s healthcare foundation, and simulation motion technology,” said Sibille.

About Dan Sibille

Follow updates and keep track of Dan Sibille’s latest announcements via social mediaon Instagram and LinkedIn.

About Loek Hartog

Follow updates and keep track of Loek Hartog’s season via social media on Instagram andLinkedIn.

About ACI Motorsports

ACI Motorsports is owned by current Pirelli GT4 America driver and Team Principal CurtSwearingin. To learn more about ACI Motorsports, visit www.acimotorsports.com.

Follow along with the team’s latest announcements via social media on Facebook and Instagram.

About ChillOut Motorsports

Chillout Motorsports leads the way in driver cooling technology, delivering innovative solutions designed to improve performance on the track. Our advanced cooling systems and FIAapproved apparel with thermo-regulating technology are crafted to give drivers the edge they need by keeping their bodies cool and their minds focused. To learn more about ChillOutMotorsports, visit www.chilloutmotorsports.com.

About Gemini Advisory Services, LLC

Gemini Advisory Services, LLC was founded to provide growth advisory services to small and mid-sized Cybersecurity companies. The emergence of new platforms within the Cybersecurity market has heightened the need for all Private Equity and Venture Capital firms to accelerate andupscale the "go-to-market" business plans of their investment companies so they have the core business disciplines, and deep domain expertise required for success. To learn more aboutGemini Advisory Services, LLC contact dsibille@GemAdvServLLC.com.

About Racing for Children’s Foundation

Racing for Children’s is a Birmingham, Alabama volunteer-based 501c3 organization on a mission to help every child win their race against childhood cancers or blood disorders. The two-fold mission, through the engagement of motorsports, is to provide unique patient experiences and raise awareness and needed research funds to advance cures and treatments of childhood cancers and blood disorders. Through generous support of the public and team sponsors, Racing for Children’s has raised more than $4 million dollars since 2010. We are ALL Racing for Children’s! To learn more and how you or your organization can join the team, visit www.racingforchildrens.org.

About SimCraft

SimCraft is redefining humanity’s expectations of high-fidelity simulation by delivering precision-engineered motion technology rooted in physics. We are dedicated to creating the most immersive simulated environments, where our measure of realism is based on the brain’s response to optimal motion cues. Driven by the persistent desire to create the most authentic virtual experiences, we provide simulations that connects users to the real-world dynamics of vehicles with proven and unmatched accuracy. To learn more about SimCraft, visitwww.simcraft.com.

For more information, press only: Email: acimotorsports@advancedcollision.org