Iso Grifo IR8 (1972-74)
Production Total: The Iso Grifo IR8 had a very limited production run, with only **34 examples** ever made. This rarity makes it a highly sought-after classic car among collectors.
*****
Price New: In 1972, the new price of an **Iso Grifo IR8** in the UK was approximately **£7,000**.
Using the average annual inflation rate of **5.11%** between 1972 and 2025, **£7,000 in 1972** would be equivalent to approximately **£150,000 to £155,000** in 2025.
*****
Rivals: In 1972, the main rivals of the **Iso Grifo IR8** included the **Lamborghini Miura** and the **Ferrari Daytona**. Here are their approximate new prices in the UK:
- **Lamborghini Miura**: £8,000 to £10,000
- **Ferrari Daytona**: £7,500 to £9,000
These prices are approximate and could vary based on specific models and configurations.
*****
Recorded in UK 2024
It appears that there isn't specific data available on the exact number of Iso Grifo IR8 cars currently registered in the UK. Given the extremely limited production run of only 34 cars, it's likely that only a few, if any, are in the UK.
*****
PLEASE NOTE: The information provided below is given in averages across Northern Ireland at the date specified. Petrol reflect average prices for four star fuel in litres.
Road Tax: In 1972, the cost of road tax in the UK for a car like the **Iso Grifo IR8**, which had an engine size over 1549cc, was **£50 per year**.
*****
Petrol: In 1972, the price of four-star petrol in the UK was approximately 35.25 pence per litre*
Using the average annual inflation rate of **5.11%** between 1972 and 2025, **35.35 pence in 1972** would be equivalent to approximately **£7.60** in 2025.
*****
Insurance: N/A
*****
1971/COST OF LIVING UK
In 1971, the average annual salary in the UK was approximately **£1,500** for male manual workers and **£750** for female manual workers.
Using the average annual inflation rate of **5.11%** between 1971 and 2025, **£1,500 in 1971 would be equivalent to approximately £27,090 in 2025**.
*****
In 1971, the average price of a house in the UK was around **£4,975**. Adjusting for inflation, this would be approximately **£75,000 to £80,000** in today's terms.
*****
In 1971, the average price of a new car in the UK was around **£1,000**. Adjusting for inflation, this would be approximately **£15,000 to £16,000** in today's terms.
*****
In 1971, the average price of a loaf of bread in the UK was around **10 pence**.
Adjusting for inflation, **10 pence in 1971** would be approximately **£1.75 to £2** in 2025 terms.
*****
Combining urban and rural averages across the UK, the estimated average cost per mile of a bus journey in 1971 was approximately: 6p per mile.
Adjusting for inflation, **6 pence in 1971** would be approximately **£1.05 to £1.10** in 2025 terms.
*****
The average cost of a taxi fare per mile in the UK in 1971 was approximately 22.5 new pence (£0.225).
Adjusting for inflation, **22.5 pence in 1971** would be approximately **£3.95 to £4.25** in 2025 terms.
*****
In 1971, the average cost per mile for a railway journey in the UK was around **1 penny per mile** (approximately **£0.03 to £0.04** in today's terms).
*****
In 1971, there were approximately **6.5 million vehicles** on UK roads. This included a mix of private cars, commercial vehicles, and motorcycles.
As of 2025, there are approximately **41.4 million vehicles** on UK roads.
*****
COMMON FAULTS
Please Note: Common Faults in Regularly Used Vehicles vs. Low-Mileage Stored Vehicles
Vehicles that have been used consistently over many years, accumulating approximately 10,000–12,000 miles annually, are more prone to common faults due to regular wear and tear. These issues typically arise from the natural aging of components subjected to frequent use, such as engine parts, suspension systems, brakes, and tires. In contrast, vehicles with low mileage that have been stored or preserved are likely to experience different types of issues. These vehicles are often better maintained to ensure their longevity and may avoid some of the typical wear-and-tear problems seen in regularly driven cars. However, they can still face unique challenges such as degradation of rubber seals, corrosion from prolonged inactivity, or fuel system issues caused by old or stagnant fuel.
The Iso Grifo IR8, like many classic cars, has a few common faults that owners and enthusiasts should be aware of:
1. **Rust**: The Iso Grifo IR8 is prone to rust, particularly around the suspension pick-up points and behind the sills. It's crucial to check these areas thoroughly.
2. **Electrical Issues**: The electrical systems can cause problems due to age and wear. Wiring and connections may need to be inspected and possibly replaced - Auto Express](https://www.autoexpress.co.uk/classic-cars/105002/iso-grifo-buying-guide-and-review-1965-1974).
3. **Suspension Wear**: While the suspension components are generally long-lasting, rubber bushes can wear or crack over time - Auto Express](https://www.autoexpress.co.uk/classic-cars/105002/iso-grifo-buying-guide-and-review-1965-1974).
4. **Engine and Transmission**: The Chevrolet V8 engines used in the Grifo are robust, but they require regular maintenance. The ZF gearbox, although reliable, can feel ponderous by modern standards.
Regular maintenance and careful inspection can help mitigate these issues and keep the Iso Grifo IR8 in good running condition.
*****
Generations/Trim Levels
Please Note: Generations and Trim Levels Across Countries
Generations and trim levels of vehicles often vary between countries as manufacturers tailor models to meet the preferences and requirements of specific markets. For example, a trim level designated as “GL” in the UK might be labelled as “XS” in another country. Due to these regional differences, the information provided on this site pertains exclusively to UK-specific products.
The Iso Grifo was produced in **three major generations** from 1965 until 1974. Each generation featured different engines and design updates, making the Iso Grifo a unique and evolving model throughout its production run.
*****
Engines
The Iso Grifo was offered with several powerful engines throughout its production run from 1965 to 1974:
1. **Chevrolet 327 V8**: 5.4-liter engine, producing around 300 horsepower.
2. **Chevrolet 427 V8**: 7.0-liter engine, known for its high performance.
3. **Chevrolet 454 V8**: 7.4-liter engine, providing even more power.
4. **Ford 351 V8**: 5.8-liter engine, used in the later models - Auto Express](https://www.autoexpress.co.uk/classic-cars/105002/iso-grifo-buying-guide-and-review-1965-1974).
These engines contributed to the Iso Grifo's reputation as a high-performance grand tourer with a blend of Italian design and American muscle.
*****
Performance
The Iso Grifo was known for its impressive performance across its various versions. Here are the performance specifications for some of the key models:
### Iso Grifo GL 365 (1965)
- **Engine**: 5.4-liter Chevrolet 327 V8
- **Power**: 360 bhp (365 PS/268 kW) at 6200 rpm
- **Torque**: 488 Nm (360 lb-ft) at 4000 rpm
- **Top Speed**: 259 km/h (161 mph)
### Iso Grifo 7-Litre (1968)
- **Engine**: 7.0-liter Chevrolet 427 V8
- **Power**: 395 bhp (400 PS/295 kW) at 5200 rpm
- **Torque**: 623 Nm (460 lb-ft) at 3600 rpm
- **Top Speed**: 275 km/h (171 mph)
### Iso Grifo IR8 (1972)
- **Engine**: 5.8-liter Ford 351 V8
- **Power**: 321 bhp (325 PS/239 kW) at 5800 rpm
- **Torque**: 474 Nm (350 lb-ft) at 3800 rpm
- **Top Speed**: 260 km/h (162 mph)
These specifications highlight the Iso Grifo's blend of Italian design and American muscle, making it a standout grand tourer of its era.
*****
Rivals
In 1972, the main rivals of the **Iso Grifo IR8** included the **Lamborghini Miura** and the **Ferrari Daytona**. Here's a comparison of their performance:
### Lamborghini Miura P400 SV
- **Engine**: 3.9-liter V12
- **Power**: 385 horsepower at 7850 rpm
- **Torque**: 400 Nm (295 lb-ft) at 5750 rpm
- **Transmission**: 5-speed manual
- **Top Speed**: 186 mph (300 km/h)
- **Acceleration**: 0-60 mph in 6.5 seconds
### Ferrari 365 GTB/4 Daytona
- **Engine**: 4.4-liter V12
- **Power**: 347 horsepower at 7500 rpm
- **Torque**: 431 Nm (317 lb-ft) at 5500 rpm
- **Transmission**: 5-speed manual
- **Top Speed**: 174 mph (280 km/h)
- **Acceleration**: 0-60 mph in 5.5 seconds
Both cars offered impressive performance and were highly regarded in their respective categories.
*****
Designer/Dimensions
The **Iso Grifo IR8** was designed by **Giorgetto Giugiaro** at **Bertone**. Giugiaro is widely regarded as one of the greatest automobile designers of the 20th century.
Here are the dimensions of the Iso Grifo IR8:
- **Wheelbase**: 2500 mm (98.4 inches)
- **Length**: 4430 mm (174.4 inches)
- **Width**: 1770 mm (69.7 inches)
- **Height**: 1200 mm (47.2 inches)
- **Curb Weight**: 1430–1610 kg (3,150–3,550 lbs)
*****
Spares/Specialists NI
Finding spares for an Iso Grifo can be quite challenging due to its rarity. However, here are a few places in the UK and Ireland where you might be able to locate parts:
1. **[ISO Restoration](https://www.isorestorations.com/)**: They specialize in restoring Iso cars, including the Iso Grifo. They have a wealth of experience and might be able to source or fabricate parts.
2. **[Classic Engine Parts](https://www.classicengineparts.co.uk/vehicles/iso-grifo-1965-to-1974)**: They offer a range of parts for classic cars, including the Iso Grifo. You can check their website for specific parts or contact them directly.
For specialist garage services in Northern Ireland, here are a few options:
1. **[Stephen Groves Jaguar Specialist](https://www.stephen-groves.co.uk/)**: While they specialize in Jaguars, they have extensive experience with classic cars and might be able to help with your Iso Grifo.
2. **[McMillan Specialist Cars](https://mcmillanspecialistcars.com/)**: Located in Antrim, they are known for their expertise with high-end and classic cars, including brands like Ferrari, Lamborghini, and Aston Martin.
3. **[JW Service Centre](http://www.jwservicecentre.com/)**: Based in Coleraine, they offer comprehensive service and repair for a variety of vehicles, including classic cars.
*****
Racing
The Iso Grifo did have a presence in racing, particularly with the Iso Grifo A3/C model. The A3/C, where "C" stands for "Corsa" (race in Italian), was designed specifically for racing by Giotto Bizzarrini. This model featured a lightweight riveted aluminium alloy body and was intended to compete in endurance races.
One of the most notable achievements of the Iso Grifo A3/C was its performance at the 24 Hours of Le Mans, where it won the 5-Liter and above class and finished 9th overall in 1965.
The racing version of the Iso Grifo helped establish the brand's reputation for combining Italian design with American muscle, making it a formidable competitor on the track.
*****
Valuation
The value of an Iso Grifo IR8 can vary significantly based on its condition, provenance, and rarity. Given that only 34 examples were produced, they are highly sought after by collectors. Here are some general price ranges:
- **Average Condition**: Approximately £200,000 to £230,000.
- **Restored Condition**: Up to £250,000 or more.
These values can fluctuate based on market demand and the specific condition of the car.
*****
Clubs
There are owners clubs for Iso cars in Northern Ireland! One notable club is the **Association of Old Vehicle Clubs in Northern Ireland (AOVC)**, which caters to a wide range of classic vehicles, including Iso cars. They organize various events and runs throughout the year, providing a great community for enthusiasts.
*****