Iso Grifo: The Italian-American Hybrid GT in St. Louis

Join us in celebrating the legacy of the Iso Grifo, a grand-tourer with Italian elegance and American muscle, known for its distinctive design and engineering excellence.

Owning an Iso Grifo in St. Louis places you among a select group of enthusiasts who appreciate the union of Italian craftsmanship and American power. This Italian-American hybrid, designed by Bertone and powered by Chevrolet, is not just a car; it's a piece of art that encapsulates the golden era of grand tourers. Each series variant, from the elegant Series I to the rare 7-Litre IR, commands attention at concours events and auction houses alike.

As a donor, your contribution can facilitate the ongoing appreciation and preservation of these masterpieces. A typical Grifo donor is often well-versed in the importance of matching-numbers certification, Classiche or AMHT documentation, and the nuances that define the value of these vehicles. By supporting Rev Up Local, you assist in maintaining the storied legacy of the Iso Grifo, ensuring it continues to enthrall future generations.

📖Generation guide

Series I • 1965-1972

With a Bertone-Giugiaro chassis and Chevrolet small-block V8, ~330 units were produced, making the Series I a sought-after collector's item.

7-Litre • 1968-1972

This variant features the powerful Chevrolet 427 big-block L71 engine, with only ~90 units made, showcasing a distinctive raised hood-bulge.

IR Series II • 1972-1974

The facelifted Series II introduced concealed headlights and substituted the Chevrolet engine for the Ford Cleveland 351C, with ~80 units produced.

A3/C • 1963-1965

The prototype racing variant that evolved into the Bizzarrini 5300 GT, showcasing a unique lineage in the Grifo's storied history.

Targa • 1968-1970

This rare open-top variant had a limited production of ~14 units, making it a highly desirable model among collectors.

Known issues by generation

The Iso Grifo's Italian-American hybrid design means that while it boasts stunning aesthetics, it is not without potential pitfalls. The Bertone steel-monocoque body construction can be prone to rust and corrosion, particularly in the rocker panels, floors, and spare tire well. Matching-numbers verification is essential to ascertain the authenticity of the Chevrolet 327/350 or 427 V8, given the severe implications of an engine swap at the concours-grade level. Additionally, collectors should be wary of any modifications or factory color changes, as these are serious red flags in the eyes of discerning appraisers and potential buyers.

Donation value by condition + generation

The value of an Iso Grifo can vary significantly based on its condition, provenance, and completeness of documentation. Concours-grade examples that have matching-numbers certification, verified through Bizzarrini records and Chevrolet stamping cross-referencing, can command prices from $300,000 to $1.5 million. High-demand features such as original Borrani wire wheels and period-correct trims enhance value substantially. Factory color changes, however, are severe red flags for collectors. Comprehensive restoration receipts from marque specialists further solidify a vehicle's market position, making professional appraisals from qualified experts mandatory at this level.

Donation process for this model

Donating your Iso Grifo requires careful attention to detail. A qualified appraisal is imperative, with IRS Form 8283 Section B mandatory, requiring a signed and dated assessment from a credentialed appraiser. For concours-grade vehicles, enclosed transport is essential to ensure the car's preservation during the donation process. Your Iso Grifo must also include all necessary documentation for Classiche certification, original paint verification, and matching-numbers authentication to uphold its value and integrity.

St. Louis regional notes

St. Louis boasts a vibrant community of classic car enthusiasts, with several reputable marque specialists available for Grifo owners. Local experts can provide the necessary services to maintain your vehicle's concours-grade standards. Preserving the Grifo's distinctive Italian-American heritage is paramount, and regional shops can assist in ensuring your car remains in peak condition, particularly in a salt-belt environment, where corrosion can be an issue.

FAQ

What is the value of a concours-grade Iso Grifo?
Concours-grade Iso Grifo values range from $300,000 to over $1.5 million, depending on the model, condition, and documentation authenticity.
Is matching-numbers certification important for my Grifo?
Yes, matching-numbers certification is critical for maintaining value. This certification confirms that the vehicle retains its original engine and components as produced.
What documentation do I need for a donation?
You must provide IRS Form 8283 Section B with a qualified appraiser's signature and date, along with provenance documentation and any certification records related to the vehicle.
Are there specific common issues to be aware of with the Grifo?
Be mindful of rust in the Bertone body construction, the importance of matching-numbers verification, and the potential pitfalls of factory color changes.
What is a qualified appraisal, and why is it necessary?
A qualified appraisal is conducted by a credentialed appraiser to determine the vehicle's fair market value, which is necessary for tax purposes and ensuring accurate donation reporting.
How can I ensure my Iso Grifo maintains its value?
Regular maintenance by marque specialists, retaining original components, and keeping comprehensive documentation of services and restorations are key factors in preserving value.
Can I donate a non-matching numbers Grifo?
While you can donate a non-matching numbers Grifo, it may significantly affect the vehicle's value. Furthermore, thorough documentation is crucial for any donation.

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If you're an Iso Grifo owner in St. Louis, we invite you to consider donating your vehicle to Rev Up Local. Your contribution will help preserve the legacy of these remarkable Italian-American hybrids, ensuring they continue to inspire and captivate car enthusiasts for generations to come.

Vehicle Donation Resources & Guides

In-depth tax, paperwork, and donation logistics guides published by our editorial team — bookmark these before you donate.

Editorial Resources
Vehicle Donation Tax Deduction: Step-by-Step for the 2026 Filing Year
Editorial Resources
Determining Fair Market Value for a Donated Vehicle (2026 Guide)
Editorial Resources
IRS Form 1098-C Explained: What Every Vehicle Donor Needs to Know

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