This improvement has clarified the individuality of both models
The GR86 & BRZ have been partially improved for the second time now that they are current models. These are the so-called ‘C-type’ models: the BRZ has undergone only minor changes, while the GR86 has been modified to the point of changing its ride quality. The BRZ also got a new ‘STI Sport’ model, while the GR86 got a special edition model to mark the 40th anniversary of the AE86’s birth.
EyeSight was to be fitted as standard equipment on MT models
The GR86/Subaru BRZ underwent a second round of improvements (the first round of improvements = Type B was not officially announced as the changes were minor). This time, the changes are mainly minor but cover a wide range of areas. The changes common to both models are the ‘adoption of EyeSight for manual transmission models’ and ‘standardization of hands-free switches on the steering wheel’.
The EyeSight system developed exclusively for MT vehicles
Adding EyeSight to the MT model is the biggest change to the C. Although it is often thought that the AT version was used, the system was newly developed for the MT, without the false start/reverse braking and braking assist function when reversing, and ACC is activated in 2nd to 6th gear and at 30 km/h or more, The pre-crash brake function is activated in approximately three seconds, and the brake retention time is approximately three seconds.
Although many people on the internet seem to be concerned about the increase in weight due to the installation of EyeSight, the fact is that the overall system weight, including the stereo camera, is approximately 700-800g, so it is safe to say that there is “almost” no impact on driving performance.
Tuning enthusiasts are concerned about “How low can you go?” The official position is that “the only thing that will work reliably is the normal ride height”, while “we have tested and confirmed up to a certain range”. It would be nice if this area could be clarified.
In conjunction with the adoption of EyeSight, the GR86 has implemented measures to prevent brake squeal. The previous model “emphasized performance over squeal”, but they decided that squeal during driver braking operation, but not when the car automatically brakes when EyeSight’s ACC is activated, was a bad thing …….
The details regarding EyeSight will be discussed later, but since the driver assistance device was set in other MT cars at an earlier date, my personal feeling is that it has finally been set. However, as can be seen from the fact that it bears the EyeSight name, there is no doubt that it is at the top level when it comes to performance. Other than this, the changes are unique to the GR86/Subaru BRZ, but the GR86 is the one with the most changes.
GR86 changed electronic throttle output characteristics
The changes on the software side are for all cars. The GR86’s throttle control “intentionally” accentuates acceleration, but this has also led to a reputation for making it difficult to control the accelerator… However, this also made it difficult to control the accelerator…. Therefore, the C-type has been re-tuned to have a more “linear” acceleration G-connection while utilizing the existing characteristics.
Optimization of VSC control is the other. In the previous model, the control allowed a certain degree of behavioral change even when VSC was switched on, but in the C model, the control was changed to a safer and more reassuring direction (i.e. intervention at an earlier timing).
This makes its function as VSC is more clear, as those who enjoy behavioral changes (i.e. sliding driving) will select VSC OFF/TRACK mode. Nevertheless, the suspension and EPS settings have not been changed from the previous model, so the GR86’s crisp handling characteristics remain unchanged. In other words, the changes made this time have adjusted the characteristics that felt a little bit naughty in everyday driving in a “slightly” more mature direction.
The GR86 is equipped with ZF dampers and Brembo red calipers as optional equipment
On the hardware side, Brembo brakes (with red calipers) and ZF (SACHS) dampers are available as factory-installed options for the SZ/RZ. Mr. Yuya Fujiwara, head of development, said.
“The GR86 has been set up to achieve a more crisp, FR-like car movement compared to the BRZ, but because of this, we would be lying if we said we didn’t point out the ride quality in the everyday range. Therefore, with the ZF damper, we aimed for a ‘selfish’ finish in a sense, considering ride comfort without sacrificing the sports performance of the GR86.”
In addition, a special edition ’40th Anniversary Limited’ is available to coincide with these improvements. This model commemorates the 40th anniversary of the AE86 (Corolla Levin/Sprinter Treno), the ancestor of the GR86, and is based on the RZ, with special items added to the interior and exterior that would make anyone familiar with the AE86 grin. In addition, Brembo brakes and ZF dampers, which are optional in the normal version, are standard equipment.
It’s just a pity that the limited 200 units are no longer available for purchase, even if you “want” one now, as the business meeting lottery has already closed. ……
The BRZ has a new STI Sport model
The BRZ, on the other hand, has no changes to the standard models, with the biggest change being the addition of STI Sport, the flagship model of the BRZ which was also available in the previous generation and is positioned as a mass-produced complete car jointly developed by Subaru/STI. Its contents include an interior and exterior that tugs at the heartstrings of adults, plus exclusive items that enhance the quality of driving.
The exterior is differentiated by the black and cherry red one-piece and dark metallic painted alloy wheels, and the interior by the Bordeaux/black coordination and exclusive dark cast metallic decorations common to all STI Sports models. The changes are subtle, but they add a sense of individuality and specialness that is recognizable to those who know what they are doing.
The footwork is fitted with a special suspension set-up that uses Hitachi Astemo’s SFRD (frequency response dampers) for the front dampers. The SFRD has two hydraulic paths inside the cylinder, one for small strokes (high-frequency vibration) and one for large strokes (low-frequency vibration), and the damping force is mechanically adjusted according to road surface conditions and vehicle behavior. The damping force is mechanically variable according to road conditions and vehicle behavior. The system combines high-quality ride comfort with handling with deep pockets, making use of more supple foot movement than normal.
Some improvements that highlight the GR86’s and BRZ’s character
Mr. Tadanori Fujii, who organized the drive, said.
“We considered the ZF damper used in the GR86, but after considering the direction of driving that the BRZ was aiming for, we decided that SFRD was the best solution.”
In short, while being an RWD sports car, the BRZ’s driving performance seems to have been further refined in line with the “Grand Touring Performance” advocated by Subaru. A Brembo brake system is also available as a factory-installed option. Incidentally, the ‘gold + red lettering’ calipers are the first time they have been coordinated since the GDB Impreza.
Looking at the changes in this way, it seems that the Subaru BRZ has become more like the GR86 and more like the Subaru BRZ.