Makes › Lamborghini › Islero · Rare production · 1968–1970 Extremely Rare
Lamborghini
Islero
Lamborghini 400 GT Islero and the improved Islero S.
Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Photo: Matti Blume · CC BY-SA 4.0
Contents
01Overview
At a glance
- Built
- 225 Built
- Years
- 1968–1970
- Engine
- 60° V12, Bizzarrini-designed · 3,929 cc / 3.9 LFactory: 3,929 cc
- Power
- 242 kW / 330 PSFactory: 325 hp · converted
- Top speed
- 248 km/hFactory: 154 mph · converted
- Body
- Not yet verified
- Designer
- Marazzi (Milan): body design and fabrication
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The Islero is the Lamborghini 2+2 that most closely reflects the founder's own directives for the marque. Its body was a Marazzi design that replaced the Touring body of the earlier 400 GT 2+2.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Lamborghini Islero (Wikimedia Commons search)
Photo: Matti Blume · CC BY-SA 4.0
Lamborghini Islero (Wikimedia Commons search)
Photo: Calreyn88 · CC BY-SA 4.0
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02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionIslero 125 cars plus Islero S 100 cars (sum of the two QV500 figures) | 2251 | Factory production | Independently researched |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
The Islero was shown at the Turin Salon in March 1968. It used the square-tube chassis of the 400 GT 2+2 with a wider front track and revised front suspension.
After about 125 base cars, Lamborghini built the Islero S, with higher compression and 350 bhp. Production of the Islero S was halted in April 1970 after 100 had been built.
Variants
How each version differs from the standard Islero.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | 60° V12, Bizzarrini-designed2 Independently researched |
| Displacement | 3,929 cc / 3.9 LFactory: 3,929 cc2 Independently researched |
| Bore | 82 mmFactory: 82 mm2 Independently researched |
| Stroke | 62 mmFactory: 62 mm2 Independently researched |
| Compression ratio | 10.5:12 Independently researched |
| Fuel system | Six twin-choke sidedraught Weber 40 DCOE2 Independently researched |
| Power | 242 kW / 330 PSFactory: 325 hp · converted2 Independently researchedIslero S per QV500: 350 bhp at 7500 rpm, 10.8:1 compression. Base-model figure used here. |
| Power at | 7,000 rpm2 Independently researched |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Not yet verified |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Square-tube steel chassis, as the 400 GT 2+22 Independently researched |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Not yet verified |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | Not yet verified |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | Not yet verified |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 248 km/hFactory: 154 mph · converted2 Independently researched |
|---|---|
| 0–100 km/h | Not yet verified |
| 0–60 mph | 6.4 s2 Independently researched |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
Base Islero cars have retractable headlights in the nose. Islero S cars add a horizontal engine cooling vent ahead of each door and a hood-mounted air intake.
Sources
Each number links to the exact facts it supports.
-
1
Lamborghini 400 GT Islero S Level C
- 225 Islero 125 cars plus Islero S 100 cars (sum of the two QV500 figures)
-
2
Lamborghini 400 GT Islero Level C QV500.com
- Bizzarrini-designed 60° V12
- retained its 3929cc capacity
- unchanged bore and stroke of 82 x 62mm
- increased compression ratio of 10.5:1
- six twin-choke sidedraught Weber 40 DCOE
- totalling 325bhp at 7000rpm
- It used the same square-tubed chassis as the outgoing 400 GT 2+2
- Top speed was 154mph
- 0-60 took 6.4 seconds
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