Rare Car Archive

Makes › Vector United States › M12 · Specialist manufacturer · 1997–1999 Ultra Rare

Vector
M12

Lamborghini Diablo V12-powered Vector built under MegaTech ownership; supply ended with Audi's purchase of Lamborghini.

Still being researched: history, identification guide. Everything shown is checked against the cited sources. Know more? Send us a source.

Vector M12 (Wikipedia article: Vector M12)
Vector M12 (Wikipedia article: Vector M12)
Photo: Greg Gjerdingen · CC BY 2.0
14BuiltIndependently researched
0Chassis documentedin this archive
?SurvivingNot yet verified
Contents
  1. 01Overview
  2. 02Production & history
  3. 03Specifications
  4. 04Colours & options
  5. 05Individual cars
  6. 06Reference

01Overview

At a glance

Built
14 Built
Years
1997–1999
Engine
V12, mid-mounted · 5,707 cc / 5.7 LFactory: 5,707 cc
Power
366 kW / 497 PSFactory: 497 PS
Top speed
306 km/hFactory: 306 km/h
Body
Not yet verified
Designer
Peter Stevens
In this archive
Not yet verified
Surviving
Not yet verified

Sources and any conflicting figures are in the sections below.

Why it matters

The M12 was a Vector built under MegaTech ownership that replaced the W8's race-derived chassis and engine with a modified Lamborghini Diablo chassis and V12. It was a mid-1990s attempt to keep the Vector name in production, with only about fourteen built.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Model rarityUltra Rare 14 · Built1
Specification rarityNot yet assessed
Colour rarityNot yet assessed
Individual rarityNot yet assessed
Historical rarityNot yet assessed
Survival rarityNot yet assessed

Each kind of rarity is rated separately and never combined.

02Production & history

Production

Every figure says what it counts.

What is countedFigureBasisStatus
Total model productionfull production M12s (17 built in total) 141 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

Not yet documented. Have a source? Contribute it.

Variants

How each version differs from the standard M12.

No variants documented yet. Have a source? Contribute it.

03Specifications

Technical specifications

Engine

Engine manufacturerLamborghini2 Independently researched
Engine familyLamborghini Diablo-derived 5.7 L V123 Independently researched
Engine codeNot yet verified
LayoutV12, mid-mounted4 Independently researched
Cylinders124 Independently researched
Displacement 5,707 cc / 5.7 LFactory: 5,707 cc4 Independently researched
Bore 87 mmFactory: 87 mm2 Independently researched
Stroke 80 mmFactory: 80 mm2 Independently researched
Compression ratio10:12 Independently researched
ValvetrainDOHC, 4 valves per cylinder4 Independently researched
Fuel systemSePFi2 Independently researched
InductionNaturally aspirated2 Independently researched
Power 366 kW / 497 PSFactory: 497 PS4 Independently researched
Power at 6,800 rpm4 Independently researched
Torque 576 NmFactory: 576 Nm4 Independently researched
Torque at 5,200 rpm4 Independently researched

Transmission & drivetrain

Gearbox5-speed manual, ZF-based5,2 Independently researched
Gears54 Independently researched
Final drive4.222 Independently researched
Driven wheelsRear2 Independently researched

Chassis, body & dimensions

ChassisAdapted Lamborghini Diablo chassis, lengthened and modified5 Independently researched
Front suspensionIndependent double wishbone, coil springs, anti-roll bar2 Independently researched
Rear suspensionIndependent double wishbone, coil springs, anti-roll bar2 Independently researched
BrakesVentilated discs2 Independently researched
SteeringPower-assisted rack and pinion2 Independently researched
Body constructionFibreglass body, adapted from the WX-3 concept shell6 Independently researched
Wheelbase 2,743 mmFactory: 2,743 mm2 Independently researched
Length 4,780 mmFactory: 4,780 mm2 Independently researched
Width 2,019 mmFactory: 2,019 mm2 Independently researched
Height 1,130 mmFactory: 1,130 mm2 Independently researched
Front track 1,605 mmFactory: 1,605 mm2 Independently researched
Rear track 1,633 mmFactory: 1,633 mm2 Independently researched
Kerb weight 1,633 kgFactory: 1,633 kg4 Independently researched
Dry weightNot yet verified

Performance

Maximum speed 306 km/hFactory: 306 km/h4 Independently researched
0–100 km/hNot yet verified
0–60 mph 4.8 s4 Independently researched
Standing ¼ mile 12.8 s2 Independently researched
Fuel tank 89 LFactory: 89 L2 Independently researched

“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.

Not yet documented. Have a source? Contribute it.

Sources

Each number links to the exact facts it supports.

  1. 1
    RM Sotheby's Monterey 2024 – 1996 Vector M12, chassis 1V9MB1228T1048005 Level B
    • 14 full production M12s (17 built in total)
    Accessed 2026-11-12
  2. 2
    1996 Vector M12: detailed specifications, performance and economy data Level C Carfolio.com
    • Engine manufacturer Lamborghini
    • 87 × 80 mm
    • compression ratio 10:1
    • Fuel system SePFi
    • naturally aspirated petrol
    • 5 speed manual
    • Final drive ratio 4.22
    • rear wheel drive
    • I.DW.CS.ARB.
    • VeDi/VeDi-S
    • power assisted rack & pinion
    • Wheelbase 2743 mm
    • Length 4780 mm
    • Width 2019 mm
    • Height 1130 mm
    • Track/tread (front) 1605 mm
    • Track/tread (rear) 1633 mm
    • Standing quarter-mile 12.8 s
    • fuel tank capacity 89 litres
    Accessed 2026-11-13
  3. 3
    1999 Vector M12 For A Myth-Busting $139,900! Level C Rob Emslie · Jalopnik · 2009-10-08
    • V12 engine from the Lamborghini Diablo
    Accessed 2026-11-13
  4. 4
    1996 Vector M12 specifications Level C Carfolio
    • 5.7 litre naturally aspirated 12 cylinder powerplant
    • 12 cylinder powerplant
    • 5.7 litre 5707 cc (348.263 cu in)
    • double overhead camshaft (DOHC) 4 valves per cylinder
    • 497 PS (490 bhp) (365 kW) at 6800 rpm
    • at 6800 rpm
    • 576 Nm (425 ft-lb) at 5200 rpm
    • at 5200 rpm
    • 5 speed manual gearbox
    • claimed kerb weight is 1633 kg
    • Maximum stated speed is 306 km/h (190 mph)
    • Acceleration 0-60 mph 4.8 s
    Accessed 2026-11-13
  5. 5
    10 Things Everyone Forgot About The Vector M12 Level C Jason Garbutt · HotCars · 2022-02-28
    • ZF-based five speed manual
    • adaption of the Diablo's chassis, lengthened and tweaked
    Accessed 2026-11-13
  6. 6
    Absurd Annexation - 1998 Vector M12 ASR GT2 Level C Dylan Smit · Car Throttle (archived 2018)
    • horribly distorted fiberglass version of the Avtech WX-3's bodyshell
    Accessed 2026-11-13

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