Group C

After the Countach, Racing Master 1-2-3-4 and Racing Master 5-6-7 chassis, Tamiya introduces the Group C chassis for Pan Car models partially named after the first model released for sale:

– Mercedes C11 Group C, model number 58088, released for sale in 1990 and available on the market until 1994, long-wheelbase version,
– Nissan 300ZX IMSA GTO, model number 58091, released for sale in 1991 and available on the market until 1994, short-wheelbase version,
– Jaguar XJR12 Daytona Winner, model number 58092, put on sale in 1991 and available on the market until 1994, long wheelbase version,
– Honda NSX, model number 58094, put on sale in 1991 and available on the market until 1995, short wheelbase version,
– Ferrari F40, model number 58098, put on sale in 1991 and available on the market until 1995, short wheelbase version,
– Mazda 878B, model number 58102, put on sale in 1991 and available on the market until 1994, medium wheelbase version,
– Nissan R91CP, model number 58109, put on sale in 1992 and available on the market until 1994, long wheelbase version,
– Daytona Thunder, model number 58153, put on sale in 1995 and available on the market until 1996, short wheelbase version,
– Street Devil, model number 58174, put on sale in 1996 and available on the market until 1997, medium wheelbase version,

These nine models represent a very important innovation for Tamiya, and there are several images that Tamiya published in Guide Books in the 1990s

Tamiya published several images in magazines in the early 1990s.

The parts list of the Ferrari F40 model number 58098, Jaguar XJR12 Daytona Winner model number 58092, and Mazda 878B model number 58102 highlights how these models have a lot of parts in common and no particular technical evolution. This new business strategy unites families released in the 1990s such as formula 1 chassis code F101 and F102. It is a change in the commercial strategy for releasing new models that Tamiya applies to improve the economies of scale of mass production.

Models differ in body, wheel rims, the shape of the rear wing (when present) and towers to join the body to the chassis.

The Group C chassis comes to market with three different wheelbases:

– 260 mm short for Nissan 300ZX IMSA GTO model number 58091, Honda NSX model number 58094, Ferrari F40 model number 58098, Daytona Thunder model number 58153
– 270 mm medium for Mazda 878B model number 58102, Street Devil, model number 58174, and
– 280 mm long for Mercedes C11 Group C model number 58088, Jaguar XJR12 Daytona Winner model number 58092, Nissan R91CP model number 58109

To change the wheelbase length, the spacer found in parts A identified with the number 6 is used (image on the left of the first row, part highlighted in blue). In short-pitch models, no spacer is inserted (image to the right of the first row). In medium-pitch models, the spacer is inserted facing the front (image to the left of the second row, part highlighted in red). In long-pitch models, the spacer is inserted facing the rear (image to the right of the second row, part highlighted in orange).

The main features of this chassis are:

– ball bearing rear differential which is an evolution of the one first released on the F101 chassis

– the center frame is a plastic tub to which the front steering system and rear T-frame are attached. The rear T-plate made of FRP acronym “Fiber Reinforced Polymers” is the same as the F102 frame and has code 4005031 or 14005031.

– single rear shock absorber is a CVA in the Mini version.
– the rear structure that houses the motor, rear axle, differential box and suspension is the same as the F101 and F102 series.This subsystem composed of 4 plastic parts is identified as part C number 0005371 and is found on the F101, F102, F103 and F104 chassis

– To strengthen the rear structure, there is a rhombus-shaped metal plate (part number 4305259) to which the motor is attached (plate and motor highlighted in gray). This rhombus-shaped plate prevents breakage to the plastic C-shaped motor carrier plate.

– the front suspensions are simple springs acting on the steering spindle
– the front suspension arms are four because they are separate left-right side and upper-lower side. Part B part number 0005370 or spare part number 50387 is also used on the F101 and F102 chassis. The steering spindles (part number 0005059) share the Road Wizard, F101, F102, F103 and F104 chassis.

– Group C family models are equipped with rich Lexan body.
– The steering repeats the design of previous models: the steering arms have different lengths. This results in the radius of curvature on the right side being different from that on the left side.

– the parts that change are the towers and supports to attach the body to the frame

Rerelease

To date (2024) there have been several rereleases:

– Mercedes C11 Group C, model number 58351; put on sale in 2005, 2009 and 2013; long wheelbase version,
– Mercedes C11 Group C, model number 84079 factory pre-assembled complete with control electronics; offered for sale in 2008; long wheelbase version
– Mercedes C11 Group C, model number 47484; put on sale in 2022; long wheelbase version,
– Jaguar XJR12 Daytona Winner, model number 58352; put on sale in 2005; long wheelbase version; in the rerelease, part A is black and no longer blue as in version 58092
– Jaguar XJR12 Daytona Winner, model number 84080 factory pre-assembled complete with control electronics, offered for sale in 2008, long wheelbase version, in the rerelease Part A is black and no longer blue as in version 58092
– Ferrari F40, model number 58356, put on sale in 2005, short wheelbase version, in the rerelease part A is black and no longer red as in version 58098
– Mazda 878B, model number 58357, put on sale in 2005, medium wheelbase version, in the rerelease part A is black and no longer green as in version 58102
– Nissan R91CP, model number 84264, put up for sale in 2012, long wheelbase version, in the rerelease Part A is black and no longer blue as in version 58109
– Honda NSX, model number 84385, offered for sale in 2014, short wheelbase version, in the rerelease the A-part is black and no longer red as in version 58094

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