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HM ROAD RACING DEVELOPMENT

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Founded by Enthusiast and racing driver Henry Marshall and longtime coach Brandon Chappell, HM Road Racing was created to guide drivers from their very first track day all the way to the professional podium.
While we specialize in Porsche race cars and GT street cars, our high-performance approach extends to all makes and models. Whether you're chasing lap times or honing your skills behind the wheel, we bring the same level of precision and passion to every vehicle.
Driven by a commitment to excellence, transparency, and meticulous attention to detail, HMRR offers comprehensive support for both amateur and professional drivers. From expert car preparation and maintenance to personalized coaching and driver development, we’re here to help you elevate your performance—no matter what you drive.
Race car driver in white and red racing suit holding helmet, standing next to a black and red racing car in a desert race track.
A man wearing sunglasses, a headset with microphone, and a gray polo shirt with 'HM: Road Racing' logo, standing outdoors in a desert landscape with mountains in the background, smiling.
A racing car on a race track moving at high speed with desert landscape and mountains in the background.

THE TEAM

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  • A man wearing sunglasses and a black polo shirt with Porsche Motorsport and HHC Road Racing logos.

    Henry Marshall

    TEAM OWNER

  • A smiling man wearing a gray cap, black sunglasses, and a headset with a microphone, dressed in a Porsche Motorsport polo shirt and a lanyard with Porsche and USAC logos.

    Brandon Chappell

    TEAM MANAGER

  • Man with red beard wearing sunglasses and a headset with a microphone, dressed in a black shirt with 'HMI Road Racing Development' logo, standing outdoors.

    Matt Swales

    Shop Manager/Lead mechanic  

  • A man smiling and wearing sunglasses, a headset with a microphone, and a black shirt with racing sponsorship logos.

    Carlos Ortega

    Car Lead/Mechanic

  • A male race car driver with short brown hair and a beard, wearing a black racing suit with sponsorship patches, standing outdoors with a blurred background.

    Cory Bergan

    Junior Mechanic/ Tires

  • A man smiling and wearing a black polo shirt with Porsche Motorsport logo, adjusting or holding his watch on his left wrist.

    Justin Jang

    Engineer

  • A man wearing sports sunglasses and a black hoodie, leaning on a vehicle, with sunlight in the background.

    Nico Castellaccio

    CAR LEAD/MECHANIC

  • A man with a full beard, sunglasses, and 웃리 in-ear headphones smiling outdoors at a racing event.

    Shane Petrosillo

    MECHANIC

OUR SERVICES

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  • A graphic of a white motorcycle helmet with a red background.

    DRIVER DEVELOPMENT

  • Icon of a sports car on a laptop screen, red background.

    DATA ANALYSIS

  • A stylized robot head with antennae on a red background, featuring a science or technology theme.

    RACE SUPPORT

  • Silhouette of a sports car on a red background, enclosed in a garage outline.

    BUILDS & MAINTENANCE

  • TRACK DAY SUPPORT

CONTACT US

Ferrari logo with red background and stylized white F-shaped design.
A race car driver standing outside with a racing helmet in his hand, next to a black, red, and white race car, smiling in bright sunlight under a canopy.