Automotive & Motorsports

Revolutionize Your Automotive Manufacturing with High-Performance Components

Lightweight polycarbonate windows, carbon fiber composite panels, and Fusionite™-coated components engineered for passenger vehicles, commercial fleets, and specialty vehicles.

When automotive components fail validation, vehicle performance, FMVSS compliance, and program launch timelines are at risk.

Automotive & Motorsports
American-Made Manufacturing

High-Performance Components for Critical Automotive Applications

Five Star Fabricating offers American-made polycarbonate windows, carbon fiber composite panels, and Fusionite™-coated components that combine impact resistance, optical clarity, and dramatic weight reduction for the most demanding automotive applications. Whether for passenger vehicles, commercial fleets, motorsports body panels, or specialty platforms, our components deliver safety, fuel efficiency, and long-lasting durability for OEM programs at scale.

Polycarbonate Windows
Carbon Fiber Composites
Fusionite™ Hardcoats
FMVSS 226 Compliance
ISO 9001:2015 Certified
Production Repeatability

What Happens When Automotive Components Fail Validation

Without proper materials and validation, automotive components can degrade, lose impact resistance, and compromise vehicle performance under the extreme stress of automotive environments — vibration, thermal cycling, road debris, UV exposure, and high-cycle fatigue.

When automotive components fail — in validation or in the field — it creates real program risk:

  • FMVSS compliance delays that push back vehicle launch and production timelines
  • Costly redesign cycles late in the OEM program
  • Warranty and liability exposure after vehicle delivery
  • Compromised occupant safety and program reputation in critical applications
Engineering Capabilities

Automotive Component Manufacturing Capabilities

From prototype validation through high-volume OEM production — Five Star supports the complete automotive component program lifecycle.

Thermoforming

Complex curved geometries formed to automotive tolerances for windshields, sunroofs, lighting lenses, and body panel applications.

CNC Trimming

Precision CNC routing and trimming for exact edge profiles and dimensional accuracy across high-volume production runs.

Fusionite™ Coatings

Proprietary hardcoat systems providing scratch, UV, abrasion, and chemical resistance validated for automotive exposure.

Carbon Fiber Composites

Advanced composite body panels and structural components engineered for motorsports and high-performance vehicle programs.

FMVSS Validation

In-house testing for impact resistance, FMVSS 226 compliance, UV degradation, scratch resistance, and thermal cycling.

High-Volume Production

From prototype to high-volume OEM programs with repeatable quality and Fusionite™ coating consistency at scale.

Automotive Component Performance Requirements

Polycarbonate and composite components for automotive applications must meet strict demands across six performance areas:

RequirementWhat It Means in Practice
Impact Resistance10x more impact-resistant than glass — withstands road debris and collision forces without fracture
Weight ReductionUp to 70% lighter than traditional materials — reduces vehicle weight up to 30% for improved fuel economy and EV range
FMVSS ComplianceMeets FMVSS 226 ejection mitigation standards and applicable safety requirements
Optical Clarity90% light transmission for windshields, side windows, sunroofs, and lighting lenses
UV & Weather DurabilityMaintains clarity and coating adhesion across the full vehicle service life
Coating PerformanceScratch, UV, abrasion, and chemical resistance validated for automotive exposure
Why OEMs Choose Us

Why Automotive OEMs Trust Five Star Fabricating

We support automotive OEMs, Tier 1 suppliers, and motorsports teams from prototype validation through high-volume production — engineered for safety, weight reduction, and manufacturability at scale.

01
USA-Made Excellence

Proudly manufactured in our 300,000-square-foot, ISO 9001:2015-certified facility in Twin Lakes, Wisconsin, ensuring compliance with rigorous automotive industry standards and full supply chain traceability.

02
Motorsports Leadership

As the exclusive supplier of composite body parts for NASCAR's Xfinity Series and NASCAR Cup Series Supplier of the Year for 2024 and 2025, our components are proven in the most demanding high-performance environments.

03
Advanced Materials Expertise

Specializing in polycarbonate, carbon fiber composites, and advanced plastics with Fusionite™ scratch-resistant coatings, we provide lightweight, durable components that reduce emissions and improve fuel economy.

04
Tailored Components for OEMs

Our custom fabrication capabilities allow us to meet unique vehicle design requirements — from complex geometries to high-volume production — ensuring seamless integration and optimal performance.

05
Safety & Compliance Confidence

All components meet or exceed automotive safety standards, including FMVSS 226, ensuring reliability and safety for end-users. Learn more about our commitment to quality.

Engineered Performance

Key Features for Automotive Components

  • Significant Weight Savings — Up to 70% lighter than traditional materials, reducing overall vehicle weight by up to 30% and extending hybrid and EV range.
  • Enhanced Safety — Polycarbonate windows and lenses are 10x more impact-resistant than glass and meet FMVSS 226 ejection mitigation requirements.
  • Exceptional Durability with Fusionite™ — Our proprietary coating system delivers scratch, UV, abrasion, and chemical resistance to maintain clarity and performance over the vehicle's full service life.
  • Flexible Design Capabilities — Custom fabrication supports advanced designs from complex curved geometries to high-volume production runs tailored to OEM specifications.
  • Cost Efficiency — Lightweight materials and durable designs reduce fuel costs and maintenance expenses, providing long-term program value.
  • Multi-Material Expertise — Polycarbonate, carbon fiber composites, and advanced plastics from one supplier — eliminating supply chain complexity for OEM programs.
Where We Perform

Automotive & Motorsports Component Applications

From hybrid passenger vehicles to NASCAR Cup Series race cars — Five Star polycarbonate and composite components are engineered for the most demanding automotive environments on and off the track.

Five Star Fabricating automotive polycarbonate lighting lenses
Five Star Fabricating automotive lighting lens components

Typical programs include OEM production volumes, FMVSS 226 compliance requirements, ISO 9001:2015 quality systems, and engineering-led development from prototype through high-volume production scale.

  • Polycarbonate Windows & Sunroofs

    Lightweight, impact-resistant windows with 90% light transmission — engineered for front windshields, side windows, and sunroofs in passenger vehicles, hybrids, EVs, and commercial fleets.

  • Lighting Lenses

    High-clarity polycarbonate lenses for headlights, taillights, directional lights, and instrument panels — ensuring optimal visibility, safety compliance, and long-term UV durability.

  • Composite Body Panels

    Lightweight carbon fiber composite panels for performance vehicles and motorsports — proven in NASCAR Cup Series competition with the strength, flexibility, and design versatility OEMs require.

  • Motorcycle Wind Deflectors & Fairings

    Custom-designed deflectors and fairings for motorsports and powersports applications, improving aerodynamics and rider comfort in high-performance environments.

  • Commercial Vehicle Components

    Durable polycarbonate and composite parts for trucks, buses, vans, and fleet vehicles — engineered for reliability under heavy use, long service life, and demanding duty cycles.

  • Specialty & EV Vehicle Components

    High-performance lightweight components for hybrids, electric vehicles, RVs, and specialty platforms — reducing vehicle weight to extend range, improve efficiency, and enhance both aesthetics and functionality.

Program Fit

Is This the Right Fit for Your Automotive Program?

Not every component supplier is built for production-volume automotive programs. Five Star partners with automotive OEMs, Tier 1 suppliers, and motorsports programs on long-term production programs that demand engineering support, FMVSS-validated performance, and high-volume production repeatability. Here's where we fit best — and where another partner may serve you better.

Best Fit For:
  • OEM automotive programs requiring lightweight polycarbonate windows and composite body panels
  • Passenger vehicles, hybrids, and EVs targeting weight reduction and extended range
  • Commercial fleets and specialty vehicles requiring durable, custom-fabricated components
  • Motorsports teams needing high-performance composite body parts and wind deflectors
  • Applications requiring FMVSS 226 ejection-mitigation performance and high impact resistance
  • Programs that benefit from polycarbonate, carbon fiber composites, and Fusionite™ hard coatings from a single supplier
Not Ideal For:
  • Single-unit replacement parts or standalone, one-off fabrication outside of an OEM program
  • Projects without defined OEM specifications or validation requirements
  • Programs where lowest unit cost outweighs durability and weight savings
  • Applications that don't need engineering support or design-for-manufacture review

Not sure if your program is a fit? Talk with an engineer first.

Discuss Your Application View Fabricating Capabilities
Process

How We Move Your Automotive Program Forward

From concept review through high-volume launch and beyond — our automotive component program process is built to reduce FMVSS compliance risk, eliminate redesign cycles, and deliver production-ready polycarbonate and composite components on time.

  • Align component performance with FMVSS 226 and OEM specification requirements early
  • Reduce costly redesign risk before tooling and production investment
  • Validate impact resistance, weight reduction, and Fusionite™ coating durability before scale
  • Create a clear path from prototype validation to high-volume OEM production
Five Star Fabricating automotive polycarbonate windows and component fabrication

Ready to start an engineering review? Talk with a Five Star automotive engineer about your program requirements, timeline, and FMVSS compliance path.

Start an Engineering Review
  • 01 Concept Review

    We evaluate your vehicle program requirements, FMVSS 226 compliance constraints, weight reduction targets, environmental exposure conditions, and production timeline before any tooling commitment.

  • 02 DFM Collaboration

    Our automotive engineers work directly with your OEM team to optimize component geometry, thermoform complexity, coating selection, dimensional tolerances, and unit cost before production tooling begins.

  • 03 Prototype & Validation

    Rapid prototyping and in-house lab testing validate impact resistance, Fusionite™ coating performance, FMVSS 226 compliance, UV durability, and thermal stability before production release.

  • 04 Production & Scale

    Full-scale American manufacturing delivers repeatable dimensional accuracy, Fusionite™ coating consistency, and production-ready automotive components for OEM programs at high-volume scale.

Program Outcomes

What a Properly Engineered Automotive Component System Delivers:

Automotive OEMs and Tier 1 suppliers who partner with Five Star Fabricating from concept through high-volume production consistently achieve these program outcomes — from first article validation through certified production at scale.

Components validated before production tooling commitment
FMVSS 226 compliance and reduced certification program risk
Repeatable dimensional accuracy and Fusionite™ coating consistency at OEM volume
Up to 70% lighter than traditional materials — improving fuel economy and EV range
10x more impact-resistant than glass — without sacrificing optical clarity
Motorsports-proven performance backed by NASCAR Cup Series competition
ISO 9001:2015 certified production with engineering support at every stage
American-made quality with full supply chain traceability
Ready to Achieve These Outcomes?

Talk with a Five Star automotive engineer about your program requirements, FMVSS compliance path, and production timeline.

Trusted by Automotive OEMs

What Automotive Leaders Say About Five Star

"Five Star Fabricating has been instrumental in supporting our high-volume automotive programs. Their ability to deliver cost-effective, high-quality components has been invaluable."
Executive — High-Volume Automotive OEM
Common Questions

Automotive Component Engineering FAQs

Answers to the questions automotive OEMs, Tier 1 suppliers, and motorsports teams ask most about polycarbonate windows, composite components, coatings, and OEM program fit.

Five Star uses polycarbonate, carbon fiber composites, and advanced plastics — enhanced with Fusionite™ scratch-resistant coatings — to create lightweight, durable, and safe components for OEM automotive applications, commercial fleets, and motorsports programs.
By reducing overall vehicle weight by up to 30%, our components enhance fuel efficiency and lower emissions — supporting sustainability goals and extending the range of hybrid and electric vehicles without sacrificing safety or performance.
Yes. Our custom automotive fabrication services deliver tailored components to meet unique OEM requirements — from complex curved geometries to high-volume production runs — ensuring optimal fit, performance, and seamless integration across passenger vehicles, commercial fleets, and specialty platforms.
All components meet or exceed industry safety standards, including FMVSS 226 ejection mitigation requirements. Every component undergoes in-house testing for impact resistance, UV degradation, thermal cycling, and coating adhesion before production release to ensure reliability for end-users.
Polycarbonate windows are up to 70% lighter than traditional materials, 10x more impact-resistant than glass, and offer 90% light transmission — providing greater design flexibility, enhanced occupant safety, and significant weight reduction for fuel economy and EV range improvements.
Five Star Fabricating is ISO 9001:2015 certified and supports FMVSS 226 compliance for automotive OEM programs. Our engineering team works with OEMs from prototype validation through certified high-volume production to ensure components meet all applicable standards and program requirements.
Yes. Five Star is the exclusive supplier of composite body parts for NASCAR's Xfinity Series and was named NASCAR Cup Series Supplier of the Year for both 2024 and 2025. Our components are proven in the most demanding high-performance racing environments and translate directly to OEM performance vehicle programs.
Five Star Fabricating is purpose-built for OEM automotive programs with high-volume production commitments and engineering-led development from prototype through production scale. We are not ideally suited for aftermarket retail or single-unit replacement components.
Start Your Automotive Program

Ready to Enhance Your Vehicles with High-Performance Components?

Partner with Five Star Fabricating to transform your automotive manufacturing with capabilities that prioritize safety, efficiency, and innovation. From hybrid passenger vehicles to NASCAR Cup Series race cars — we deliver American-made components engineered for performance.

Built for OEM programs where component performance, FMVSS compliance, coating durability, and high-volume supply continuity matter — from prototype through certified production.

Call us at +1 (262) 877-2171

Supporting Tier 1 and OEM programs across automotive, EV, motorsports, and advanced mobility.