At Island Wheels in Hawaii, we celebrate the storied legacy of the Iso Grifo, a magnificent Italian-American hybrid GT that epitomizes automotive excellence. From the exquisite Bertone-Giugiaro design to its powerful Chevrolet V8 engines, the Iso Grifo—produced between 1963 and 1974—represents a unique fusion of Italian artistry and American muscle. Donors of the Grifo typically appreciate the vehicle's concours-grade auction potential, with values ranging from $300,000 to over $1.5 million depending on its provenance and specifications.
Each Iso Grifo must be thoroughly authenticated, with matching-numbers certification and detailed documentation of its factory specifications mandatory. The journey of a Grifo from donor to the auction stage requires adherence to strict standards, including independent appraisals from qualified experts. Your contribution to Island Wheels helps preserve the legacy of these extraordinary automobiles while allowing them to inspire future generations of enthusiasts.
📖Generation guide
Iso Grifo Series I • 1965-1972
Featuring a Bertone-Giugiaro-designed chassis, this series includes approximately 330 units powered by Chevrolet's 327/350 small-block V8, making it a sought-after classic.
Iso Grifo 7-Litre • 1968-1972
This ultra-rare variant boasts a Chevrolet 427 big-block L71 engine. With about 90 units produced, it’s revered for its distinctive raised hood and collector’s appeal.
Iso Grifo IR Series II • 1972-1974
The late-production Series II featured a concealed-headlight conversion and utilized the Ford Cleveland 351C V8 due to supply issues, limited to around 80 units.
Iso Grifo A3/C • 1963-1965
A prototype racing variant engineered by Bizzarrini, it evolved into the renowned Bizzarrini 5300 GT, marking a distinct lineage in the Grifo's history.
Iso Grifo Targa • 1968-1970
An exceedingly rare open-top variant, with only about 14 units produced, the Targa showcases the Grifo's versatility and design excellence.
Known issues by generation
The Iso Grifo is celebrated for its unique Italian-American hybrid construction but does come with specific challenges. Notably, rust and corrosion can affect the Bertone-styled body, particularly in areas like the rocker panels and spare tire wells. Ensuring authenticity is critical, necessitating meticulous verification of matching-numbers Chevrolet V8 engines—common issues arise with engine swaps, which are considered severe red flags in concours settings. Furthermore, maintaining the integrity of the original Bertone design and ensuring factory specifications is essential for preserving value and auction readiness.
Donation value by condition + generation
When it comes to valuing your Iso Grifo, achieving concours-grade blue-chip status requires stringent adherence to authenticity and provenance. Matching-numbers certification is paramount, and documentation such as Bizzarrini records should accompany your vehicle. The presence of original Borrani wire-wheels, Connolly leather, and period-correct trim can significantly elevate the vehicle's value. Any factory color changes are red flags that can severely impact auction prospects. Auction houses like RM Sotheby's and Gooding & Company provide essential comp insights, further emphasizing the necessity of a qualified-appraiser for a full appraisal to ensure compliance with IRS regulations.
Donation process for this model
To donate your Iso Grifo, a qualified appraisal is mandatory to ascertain its value. You are required to complete IRS Form 8283, Section B, which must be signed and dated by the qualified appraiser. This process is essential for all vehicles exceeding the $5,000 threshold, including Grifos. Additionally, we require original-paint and matching-numbers verification alongside documentation proving adherence to Classiche and Bizzarrini records. Enclosed transport is necessary for concours-grade examples to maintain their pristine condition.
Hawaii regional notes
Hawaii has a rich automotive culture, providing access to experienced marque specialists for the Iso Grifo. While there are resources available for various high-end brands, such as Aston Martin and Maserati, it’s essential to connect with independent shops familiar with Iso and Bizzarrini. Local preservation efforts must consider Hawaii's unique climate, as salt exposure can accelerate corrosion, making it even more important to maintain your Grifo in optimal condition.
FAQ
What documentation is required for my Iso Grifo donation?
What is the significance of matching-numbers in valuation?
How can I find a qualified appraiser for my Iso Grifo?
What is the auction potential for my Grifo?
Is original paint important for auction value?
What is the IRS Form 8283 Section B?
Can I donate a Grifo with modifications?
Other model-specific guides
Vehicle Donation Resources & Guides
In-depth tax, paperwork, and donation logistics guides published by our editorial team — bookmark these before you donate.