Tamiya released only one model with the BIGWIG chassis, which of course retains its name: model number 58057, which went on sale in 1986 and was available on the market until 1991. After the B2B sidecar model 58017, the Pajero model 58044 and the Fox model 58051, this is the third time for Tamiya to release a chassis available on the market with only one model.

With BigWig, Tamiya celebrates ten years since entering the world of buggy racing and entrusts the design of the car to renowned designer Takuya Yura. Takura is the founder of the Mooncraft company and is one of the best known race car designers in Japan, his greatest success being the Mazda 717C that won the Le Mans 24-hour race in 1983.
The designer’s idea is to make the car appear as if drawn by the wind: a wing that develops from the front to the rear, passing through the engine air intake reminiscent of the F1 cars of the time and ending with the large rear wing.
This model found ample space in the 1987 Guide Books where it gained the cover.

Within the 1987 Guide Book there is a section where two special liveries are proposed out of the nine in the instruction manual.

There are several advertisements that Tamiya or the various importers around the world have published in trade magazines, in the image below is an example.

It is a four-wheel drive model that is clearly derived from Hot Shot, in particular there are several technical solutions in common with Hot Shot II model number 58062. These are the parts in common between the two models, plus some of the small parts.

These are the main features of the BigWig chassis from the front moving towards the rear:

– large plastic front bumper that completely protects the two wheels in a completely new shape and unique for this model,

– the central chassis is made of single-shell plastic material in a broad shape with a cover to protect electronics from splashes, dust, dirt and debris from the wheels. This solution aims to make access to the electronics less laborious than with the previous Hot Shot family. With the Boomerang frame, the same design philosophy of opening up the electronics shell was also applied, but the shape of the Boomerang frame is still linear (it takes up the shape of the Hot Shot frame) whereas the BigWig frame is V-shaped (left in the picture)
– rack and pinion steering (right in the picture) which is a world first even for Tamiya’s designers. A similar solution was taken up on the Tamtech F1 chassis,

– independent front and rear double wishbone suspension,
– double C.V.A. shock absorber in the Shot version on the front (left in the picture) and double C.V.A. shock absorber in the Long version on the rear (right in the picture). This is an evolution of the Super Shot model number 58054

– disc rims used only on this model, with sprockets in common with the Hot Shot family

– the electric motor is model RX540VZ TECHNIGOLD code 50290 factory-installed on Porsche 959 model number 58059, Toyota Celica model number 58064 and Avante model number 58072
– special version 8.4 V battery pack

The model never achieved impressive results on the track, partly due to the disadvantage of having a complex Styrene bodywork, which is an advantage aerodynamically, but a disadvantage in overall weight. In running order Big Wig weighs 1.75 kg, which clashes with the 1.65 kg of The Boomerang, a model with which BigWig shares most of its mechanical components.


BigWig was re-released for sale in 2017 model number 47330. The mechanical part and chassis remain largely unchanged, what changes is the motor, which becomes a special version of the Tamiya GT-Tuned and of course there is an electronic speed control for 6.6 and 7.2 volt batteries.
The biggest differences are in the stickers; the rules on the ownership of logos and trademarks changed significantly between the release of the original model in 1986 and the release of the re-release in 2017: the trademarks are protected by copyright. You can appreciate the differences of the stickers by comparing the two versions, in the picture on the left the box art of the original model and on the right the box art of the re-release:

– Ceper becomes Mooncraft,
– Pennzoil (brand of lubricants that is still operating on the market today) diverts Forward,
– Weber (brand of carburettors that is still operating on the market today) becomes Tamiya

Aesthetically, the modern stickers echo the shape and colours of the original version; therefore, you can only appreciate the difference by carefully reading the brands that are printed on the stickers.

There are several advertisements that Tamiya or the various importers around the world have published in trade magazines, in the image below is an example.

Tamiya, original figure, box art, guide book and catalogue are of TAMIYA INC, which does not endose or sponsor Any brands, logos and trademarks represented on this website are the copyright of their respective owners.