STANDARDS
Spirit of Historic B & C Sedan:
Historic B & C Sedan values an attitude of stewardship and respect for history, where participants view themselves not simply as owners or drivers, but as caretakers helping preserve these cars and their stories for future generations. HBC also values camaraderie among like-minded individuals who share a passion for historic racing, recognizing that the community and relationships built around these cars are as important as the cars themselves.
HBC is not centered around setting track records or pursuing outright competition above all else; rather, it exists to celebrate these historic cars, their heritage, and the era they represent. Participants are expected to embrace these values and contribute positively to the culture, spirit, and community that define Historic B & C Sedan.
Chassis Authenticity:
Each sedan must have raced "in-period" between 1966 and 1979 in one of the following classes:
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SCCA U2L or U2.5L Trans Am
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SCCA B-Sedan or C-Sedan
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Other considered classes: IMSA, ICSCC, Global FIA equivalent touring classes
The vehicle must retain the original tub/chassis structure that competed during its documented period of competition. Historic B & C Sedan places the highest importance on authenticity and historical integrity in the preservation of these cars. Any intentional misrepresentation of a vehicle’s identity, history, provenance, or supporting documentation is strictly prohibited and may result in immediate removal or permanent exclusion from Historic B & C Sedan participation.
For purposes of historical continuity, HBC defines the original tub as the firewall and central structural portion of the vehicle. Replacement of front and rear clips, roofs, and other removable or repairable body panels may be considered acceptable when such repairs or modifications occurred as part of the vehicle’s normal competition, accident, or restoration history.
Historic Record & Provenance:
A paper trail is vital in establishing and preserving the provenance of a historic sedan. Equally important is the commitment and effort of the caretaker to research, preserve, and provide supporting evidence wherever possible. Historic B & C Sedan values custodians who share a passion for maintaining the history and authenticity of these cars, recognizing that careful stewardship plays an important role in preserving their stories for future generations.
Historic race cars often have histories that span decades, multiple owners, and varying levels of documentation. While not every vehicle will possess complete records, caretakers are encouraged to provide as much supporting evidence as possible to establish and preserve the car’s historical identity and lineage. Guiding Principle: No single item may independently establish provenance. Rather, provenance is often built through the collective strength of multiple pieces of supporting evidence that together tell the car’s story.
Examples of supporting documentation may include:
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Original Logbooks
Original racing logbooks, sanctioning body documentation, technical inspection records, and competition history records.
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Period Photography
In-period photographs showing the vehicle during its active racing life, including identifiable details such as numbers, liveries, drivers, sponsors, damage patterns, or unique features.
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Restoration Documentation
Photographs and records documenting the restoration process, including condition upon acquisition, disassembly, repairs, and preservation work.
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Current Vehicle Photography
Current detailed photographs showing the car in its present state, including identifying features and construction details.
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Race Results and Event Records
Official race results, entry lists, event programs, grids, timing sheets, articles, magazines, and published competition records.
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Owner, Driver, or Crew Accounts
Written accounts, letters, interviews, affidavits, or documented recollections from previous owners, drivers, mechanics, crew members, or individuals directly associated with the vehicle.
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Physical Chassis and Tub Evidence
Evidence supporting continuity of the original chassis or body shell, including roll cage construction, weld patterns, mounting points, fabrication techniques, serial numbers, repair history, or other unique identifying characteristics.
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Historical Correspondence and Records
Bills of sale, ownership history, registration records, invoices, shop records, build sheets, or manufacturer documentation.
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Unique Vehicle Characteristics
Distinctive modifications, damage repairs, fabrication details, or other one-of-one characteristics that help link the car to its historical identity.
Vehicle Presentation Philosophy & Guidelines:
Historic B & C Sedan exists to preserve, celebrate, and present these race cars as authentic representations of a specific period in motorsport history. The intent is not to create modern interpretations of historic race cars, but rather to recreate and maintain them as they would have appeared and competed during their era. Authenticity of presentation is considered a core element of participation.
Our Standards:
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Restoration and Presentation
Cars should be presented in an authentic in-period configuration and appearance, restored or maintained to represent a specific point in their competition history. The goal is for the car to appear as a genuine snapshot of its era rather than a collection of components from multiple periods.
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Paint Schemes and Livery
Paint schemes, graphics, sponsor markings, and race liveries should reflect historically accurate designs that were used during the car's competition period. Modern reinterpretations or newly created themes that did not exist during the period are discouraged.
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Storyboards
All HBC sedans should be displayed alongside a storyboard at events that highlights and documents the vehicle’s history, provenance, and significance through both photographs and text.
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Driver Scripts
Only drivers who competed with the car during its documented competition history should be represented on the vehicle. Current custodians, owners, preparers, or restoration teams should not place their names on the exterior presentation of the car.
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No Modern Advertising and Branding
Modern business advertising, personal business logos, club decals, social media references, website addresses, or unrelated promotional stickers should not appear on the car. Vehicle presentation should remain consistent with the historic era being represented.
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Modern Components, Visible Equipment and Safety Equipment
With the exception of modern safety requirements, visible modern components should be avoided whenever possible. Cars should retain an authentic visual appearance and should not incorporate obvious contemporary parts that detract from historical presentation. Examples include but are not limited to:
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Modern steering wheels
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Visible modern ignition systems (MSD boxes, digital controllers, etc.)
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Modern wheel designs
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Contemporary gauges or displays
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Obvious modern electronics or accessories
Modern safety equipment is both encouraged and expected. Components such as the following are acceptable and exempt from historical presentation requirements:
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Modern racing seats
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Seat belts/harnesses
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Window nets
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Fire suppression systems
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Other required safety equipment
Preparation:
HBC's philosophy is to present race cars as built and raced "in the day" under the rules of a major, recognized sanctioning organization of that day. The only permitted deviations from those original rules are detailed in the CSRG rule book below and are allowed for safety reasons or, in rare instances, because of component unavailability.
Acceptable Tires:
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Hoosier Speedster
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Hoosier Vintage TD
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Hoosier Street TD and TDR
Exceptions will be considered for displacements of 1400cc or less.
Cars should adhere to weight specifications and preparation rules per the 1975 SCCA General Competition Rules.
2024 CSRG rules include updated seat belts with a maximum of two years from date of manufacturer.