Makes › Tommykaira › ZZII prototype · Prototype · 2001–2002 One-off
Tommykaira
ZZII prototype
One-off running supercar prototype by tuning house Tommykaira using R34 GT-R mechanicals; production never started.
Contents
01Overview
At a glance
- Built
- 1 Built
- Years
- 2001–2002
- Engine
- Front-mid, longitudinal, twin-turbo inline six (RB26DETT) turned 180 degrees · 2,700 cc / 2.7 LFactory: 2,700 cc
- Power
- 405 kW / 550 PSFactory: 550 PS
- Top speed
- 338 km/hFactory: 210 mph · converted
- Body
- Not yet verified
- Designer
- Design Apple (Nishida brothers, Kyoto), under Tommy Kaira
- In this archive
- Not yet verified
- Surviving
- 1 (unknown)
Sources and any conflicting figures are in the sections below.
Why it matters
The ZZII was a 2000 to 2001 supercar design from Tommykaira. Autobacs bought the design shortly after it was first shown, and only one prototype is recorded.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionsingle prototype, the only one the blog describes as existing | about 12Reported by enthusiast sources – not verified. Know the real figure? Send us a source. | Surviving examples | Unknown |
| Total model productionprototype built | 11 | 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 ZZ-II was a sports car design that was purchased by Autobacs shortly after it was first shown. Its design was approved on 18 December 2000, with the styling done by Design Apple, the Nishida brothers' studio in Kyoto. It started as a track-car concept and moved towards a refined supercar. Only one prototype is reported to exist, with a fibreglass body although carbon fibre was planned.
Variants
How each version differs from the standard ZZII prototype.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | RB26DETT2 Independently researchedFrom an enthusiast source (level D) – not yet confirmed by the maker or a registry. The same blog gives 2700 cc from an 87 mm bore and 75.7 mm stroke, which conflicts with the 2568 cc on the Diseno page. |
|---|---|
| Engine code | Not yet verified |
| Layout | Front-mid, longitudinal, twin-turbo inline six (RB26DETT) turned 180 degrees3 Independently researched |
| Cylinders | 64 Independently researched |
| Displacement | 2,700 cc / 2.7 LFactory: 2,700 cc3 Independently researchedSingle enthusiast-article source (level D); stroked RB26DETT. |
| Bore | 87 mmFactory: 87 mm3 Independently researched |
| Stroke | 75.7 mmFactory: 75.7 mm3 Independently researched |
| Compression ratio | Not yet verified |
| Fuel system | Not yet verified |
| Power | 405 kW / 550 PSFactory: 550 PS3 Independently researchedSingle level D source. |
| Power at | 7,500 rpm3 Independently researched |
| Torque | 540 NmFactory: 540 Nm3 Independently researchedStated as about 540 Nm. |
| Torque at | 6,000 rpm3 Independently researched |
Transmission & drivetrain
| Gearbox | Six-speed Getrag from the Skyline GT-R with ATTESA E-TS Pro four-wheel drive, modified3 Independently researched |
|---|---|
| Gears | 63 Independently researched |
| Driven wheels | All-wheel drive4 Independently researched |
Chassis, body & dimensions
| Chassis | Welded tub of square-section extruded aluminium with steel-tube subframes3 Independently researched |
|---|---|
| Front suspension | Double wishbones, pushrod, horizontally mounted coil-over units (Bilstein)3 Independently researched |
| Rear suspension | Not yet verified |
| Brakes | AP Racing slotted ventilated discs, about 360 mm 6-pot front and 320 mm 4-pot rear3 Independently researched |
| Steering | Rack and pinion, no power assistance3 Independently researched |
| Body construction | FRP (fibreglass) panels on the prototype; CFRP planned3 Independently researched |
| Wheelbase | Not yet verified |
| Length | 4.3 mFactory: 4.3 m3 Independently researched |
| Width | 1.96 mFactory: 1.96 m3 Independently researched |
| Height | 1.19 mFactory: 1.19 m3 Independently researched |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | 1,000 kgFactory: 1,000 kg3 Independently researchedThe same article says the fibreglass prototype should weigh just under 1200 kg per the Autobacs site. |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 338 km/hFactory: 210 mph · converted4 Independently researchedClaimed figure on the source page. |
|---|---|
| 0–100 km/h | Not yet verified |
| 0–60 mph | 3.3 s4 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.
The one known prototype has fibreglass (FRP) panels with a black gelcoat, where the planned body was carbon fibre. The blog also says its side windows come from a production Toyota Celica.
Sources
Each number links to the exact facts it supports.
-
1
Jalopnik: Take a rare look at the Tommykaira ZZII, a one-off supercar Level C
- 1 prototype built
-
2
part 9 | The Phantom Sportscar - Tommy kaira history Level D Luca Sciarrillo · hexgraphica (blog, archived) · 2020-12-06
- the body of the only existing prototype is made of FRP
- an RB26DETT, still a twinturbo, modified with an 87mm bore
-
3
Phantom sportscar: Tommy Kaira ZZ-II (part 1) Level D hexgraphica (archived blog) · 2025-01-08
- RB26DETT, still a twinturbo ... engine is turned 180 degrees
- 87mm bore and 75.7mm stroke, bringing the displacement to 2700cc
- 87mm bore and 75.7mm stroke
- 550PS at 7500RPM
- about 540Nm @ 6000rpm
- 540Nm @ 6000rpm
- six-speed transmission is the same Getrag borrowed from the Skyline GT-R
- The six-speed transmission
- welded tub of square-section extruded aluminum and steel-piped subframes
- double wishbones in pushrod configuration at front
- four AP Racing self-ventilated slotted discs ... 360mm and 6 pots ... 320mm and 4 pots
- rack and pinion system without power assistance
- The bodywork was planned to be in CFRP, but ... FRP
- 4 meters and 30 in length
- 1 meter and 96 in width
- 1 meter and 19 in height
- The weight figure of 1000kg
-
4
Tommy Kaira ZZII | Sports Cars Level C Diseno Art encyclopedia
- 2568 cc inline 6 twin turbo
- six speed manual AWD
- 210 mph (claimed)
- 0-60 mph 3.3 seconds
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