Analysis
Ferrari 328 GTS and AI
On August 11th, 2025 we asked 4 major Artificial Intelligence Large Language Models (Claude by Anthropic, Gemini by Google, Chat GPT by Open AI, and Copilot by Microsoft) to assess and give a value range to our Ferrari 328 GTS. See our prompts and AI's unredacted responses below

Claude by Anthropic (via the Logicballs interface)
Prompt
Response (unredacted)
1988 Ferrari 328 GTS
1350 Miles
Excellent Condition
1350 Miles
Excellent Condition
- Valuation Report: 1988 Ferrari 328 GTS
Market Value Estimation: $250,000 - $325,000
Detailed Breakdown:
🏎️ Vehicle Specifics:
Model: Ferrari 328 GTS
Year: 1988
Mileage: Extremely Low (1,350 miles)
Condition: Exceptional
Value Drivers:
Ultra-Low Mileage: Extraordinary preservation, dramatically increases collector value
Iconic Mid-Engine Design: Highly sought-after classic Ferrari model
Pristine Condition: Suggests meticulous maintenance and potential collector-grade status Market Positioning:
Collector's Dream: Represents a rare, well-preserved example of 1980s Ferrari engineering Investment Potential: Strong appreciation likelihood due to exceptional condition
Rarity Factor: Limited production numbers enhance long-term value
Valuation Factors:
Provenance: Critical for determining precise value
Originality: Appears to be in near-original condition
Maintenance History: Would significantly impact final valuation
Recommended Sales Strategies:
Specialized Collector Auctions
Ferrari Enthusiast Networks
High-End Classic Car Marketplaces
Market Insights:
Classic Ferrari values have consistently outperformed traditional investment vehicles
328 GTS models in this condition represent a pinnacle of automotive collectibility
Potential Buyer Profile:
Serious Ferrari collectors
Automotive investment enthusiasts
High-net-worth individuals seeking rare automotive assets
Estimated Annual Appreciation: 8-12% in current market conditions
Recommendation: Preserve current condition, maintain comprehensive documentation, and consider professional appraisal for precise valuation.
Disclaimer: Actual market value may fluctuate based on specific market conditions and detailed inspection.
Gemini by Google
Prompt
Response (unredacted)
Please provide me your assessment of the vehicle and approximate value range for a 1988 Ferrari 328 GTS in concours condition with only 1350 miles that has only had 2 owners and has a complete documented history
- Vehicle Assessment: 1988 Ferrari 328 GTS
The 1988 Ferrari 328 GTS is a highly desirable classic for a number of reasons. Its Pininfarina design is considered a high point of 1980s automotive aesthetics, with a clean and classic silhouette that has aged gracefully.
It represents the last of the "analog" Ferraris, offering a pure, unfiltered driving experience with its gated manual shifter and direct steering.
The 3.2-liter V8 engine is known for its relative reliability and a soundtrack that is pure Ferrari.
The combination of the following factors in this specific car makes it an exceptional example:
Concours Condition:
This means the car is presented in a state of perfection, often exceeding its original factory condition. It implies a flawless exterior, a pristine and correct interior, and a mechanically sound and highly detailed engine bay and undercarriage.
Ultra-Low Mileage (1350 miles):
A mileage this low makes the car a true "time capsule" or "survivor" example. It has been driven sparingly and meticulously preserved. For a collector, this is a crucial factor that adds significant value, as it represents a rare opportunity to own a car that is essentially new from the factory.
Only Two Owners:
A limited ownership history is highly desirable. It suggests the car has been consistently cared for and its history is easy to track. This reduces the risk of undisclosed issues or poor maintenance.
Complete Documented History:
This is a vital component of a high-value classic car. A complete history file—including original sales paperwork, service records, owner's manuals, and any factory tools or accessories—provides indisputable proof of the car's provenance, mileage, and diligent maintenance. It verifies the vehicle's authenticity and preservation.
Value Assessment: Concours Condition, 1350 Miles, 2 Owners, and Documented History
The specific combination of "concours condition," "ultra-low mileage," "limited ownership," and "complete documented history" places this 1988 Ferrari 328 GTS at the absolute pinnacle of the market for this model. These factors, especially the documented history and ultra-low mileage, elevate its value far beyond that of a standard, well-kept example.
Based on recent auction results and collector car market data for similar top-tier examples, a 1988 Ferrari 328 GTS with this level of provenance and condition would command a significant premium.
The approximate value range for such a vehicle would be between $200,000 and $275,000+. The value could potentially exceed this range at a major auction, especially if the car is a particularly desirable color combination(e.g., Rosso Corsa over Tan) and if the documented history is exceptionally thorough, including items like the original window sticker and photos from new. These are the cars that set new records and are most sought after by serious collectors looking for the very best examples available.
ChatGPT by OpenAI
Prompt
Response (unredacted)
Please provide me your assessment of the vehicle and approximate value range for a 1988 Ferrari 328 GTS in concours condition with only 1350 miles that has only had 2 owners and has a complete documented history
- Value Assessment Summary
Given the extraordinary attributes of this specific car—1988Ferrari 328 GTS, only 1,350 miles, concours condition, just 2 owners, and complete documented history—it stands at the very top of the value spectrum.
Market Data Overview
ConceptCarz valuation for "Perfect Condition" models ranges between $100,000 and $181,500, with the median auction value around $77,000 conceptcarz.com.
Classic.com reports several high-end results:
RM Sotheby’s sale of a 328 GTS with 4,400 miles, Ferrari Classiche certification: $162,400 RM Sotheby'sClassic.com+1.
Other listings have ranged up to $172,700 Classic.com+1.
CollectorCarMarket indicates “Concours” examples hitting as high as $166,000 for GTS models collectorcarmarket.com.
Reddit-sourced commentary shows strong interest in originality and provenance:
“Of total world wide production only 4,979 were GTS with concave wheels… so probably less than 2,500 remaining worldwide.” Reddit
“The best online sale price was $138,000, for a 22,000‑mile 1989 car.” Reddit
Estimated Value for Yours
Considering your car's extremely low mileage, concours-level preservation, documented history, and probably Classiche certification potential—it likely sits in the upper echelon of market values, especially compared to recent comparable sales.
Estimated Value Range:
Likely realistic range: $160,000 to $180,000+.
Fair market estimate: $170,000 to $190,000, possibly higher among dedicated collectors or at a marquee auction.
Why It Commands Such Value
Feature Contribution to Value
Mileage - (1,350 mi)Ultra‑low mileage signifies minimal wear—exceptional in a car nearing 40 years.
Concours condition - The highest collectible standard—strong aesthetic and mechanical integrity.
Provenance & Documentation - Complete history and likely authenticity certification add immense value.
Scarcity - Only ~6,068 GTS examples produced; far fewer survive well-preserved. WikipediaReddit
Next Steps
Ferrari Classiche certification (Red Book) can further enhance value and buyer confidence.
Targeted auction houses like RM Sotheby’s, Gooding & Co., or Pierce-Arrow Ranch could help realize top market figures.
Collector agents or broker dealers can estimate private sale value, factoring in regional demand and presentation.
Bottom line: Your 1988 328 GTS is an exceptional example—likely worth $170,000–$190,000, and potentially pushing even higher under the right buyer or auction circumstances. Let me know if you'd like help identifying top auction venues, prep strategies, or market comparisons!
Copilot by Microsoft
Prompt
Response (unredacted)
Please provide me your assessment of the vehicle and approximate value range for a 1988 Ferrari 328 GTS in concours condition with only 1350 miles that has only had 2 owners and has a complete documented history
- A 1988 Ferrari 328 GTS in concours condition with only 1,350 miles, two owners, and a complete documented history is an exceptionally rare and desirable example of this iconic model. Here's a detailed assessment:
🏎️ Vehicle Overview: 1988 Ferrari 328 GTS
Model: Ferrari 328 GTS (Gran Turismo Spider)
Engine: 3.2L V8 producing 270 hp
Transmission: 5-speed manual
Top Speed: ~163 mph
Production Year: 1985–1989
Units Produced in 1988: Approximately 1,548
💎 Condition Assessment: Concours-Level
A concours-condition car is judged to be in flawless, factory-original condition, often better than showroom new. With only 1,350 miles and full documentation, this vehicle would be considered museum-grade.
Key value-boosting attributes:
Ultra-low mileage (1,350 miles)
Two-owner provenance
Complete service and ownership documentation
No modifications or restorations
Original paint, interior, and mechanicals
💰 Estimated Value Range
Based on recent market data and auction results:
Condition Level - Estimated Value Range
Concours - $175,000 – $240,000
Excellent - $100,000 – $150,000
Good - $75,000 – $100,000
Fair - $30,000 – $60,000
A similar 1988 328 GTS with 6,000 miles was listed for $238,900
Auction results show top sales reaching $172,700 and even $181,500 for pristine examples
Hagerty’s valuation tool places concours-level examples above $150,000, with market trends rising steadily
📈 Market Insight
The Ferrari 328 GTS is increasingly sought after for its:
Classic 1980s styling
Analog driving experience
Reliability compared to earlier Ferraris
Limited production and strong enthusiast following
With your car’s mileage and condition, it would likely be one of the finest examples available globally, appealing to collectors and investors alike.