Nissan's 400Z Proto Design Director explains what 'the Essence of Z-ness' really means

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Shinichiro Irie, the Program Design Director of the Nissan Z Proto, explains 'the Essence of Z-ness'.

The 400Z Proto will feature a twin-turbo 3.0-litre V6 engine that is expected to make 294KW.

The first Z model was introduced in 1969.

For more motoring stories, visit Wheels24.


Nissan's Z chassis has a long and heralded history globally, ever since it was introduced in 1969.

The Z Proto is the brand's latest Z offering and will feature a twin-turbocharged 3.0-litre V6 engine expected to make 294kW, sending power to the rear wheels via a 6-speed manual transmission.

Shinichiro Irie is the Program Design Director of the Z Proto model, tasked with creating a brand-new version of the performance coupe now known as the 400Z.


Do you think the 400Z will surpass the fifth-generation Supra based on performance figures? Please email us, or share your thoughts in the comment section below.


Irie joined Nissan's Design Department in 1993 after graduating from the Tokyo University of Art. In 1997 he became a Senior Designer and in 2001 joined Nissan's Creative Box, a satellite studio located in Harajuku, the centre of youth fashion in Tokyo.

There, he concentrated on design development of trendsetting concept cars. In 2013, he became a Design Director of Nissan and Infiniti brands at Nissan Design America and, in 2016, was named Program Design Director at the company's Global Design Center in Japan.

READ | Nissan's hottest car officially revealed: What to expect from the next-gen Z sports car

Shinichiro Irie explains the 'The Essence of Z-ness' and what it means to the upcoming 400Z Coupe:

Q: 'What is Z-ness?'

nissan z proto,400z
Nissan's Z Proto

Irie: I think that the Z's styling is a symbol for Nissan that embodies the company's philosophy. We aimed to make it something that appeals to all, something for people to fall in love with at first glance. Z-ness is also something that provides driving pleasure with its excellent handling and power as soon as you get in. And of course, the Z is a car that takes tradition and combines it with modern technology, blending both in a balanced way that feels fresh but still has Z DNA at its core. With every Z model, Nissan has done this. That, to me, is the essence of Z-ness.

Q: In terms of design, what gives the Z Proto its Z-ness?

nissan z proto,400z
Nissan's Z Proto

Irie: The Z has a rich history and possesses many iconic elements. Take the headlamps, for example. On the original 240Z (S30), when the headlamps illuminate through the outer lens, they created a unique exterior reflection. We employed this shape and infused it with modern technology to create the new Z's headlamp signature that's both modern and familiar.

The styling of the rear combination lamps is another example. Although many have likened it to the Z32's, in fact, the original Fairlady Z and other past Zs had a similar design. Like the headlamps, we designed the rear lights with our heritage in mind but used a new approach that resulted in this powerful, iconic motif.

Another unique element is the silver accent that enhances the car's roofline. In the studio, we refer to this as the katana, as it shares a similar shape to the traditional Japanese sword. The Z Proto features a two-tone paint scheme with a black roof, and the accent draws the eye, creating a very 'Z-Esque' silhouette that slopes down from front to rear. The accent also won't lose its effect in monotone or lighter paint schemes.

Q: What is the Z's role in the Nissan lineup?

Nissan 400Z Proto
Nissan 400Z Proto

Irie: Of course, the Z is an icon to car enthusiasts worldwide, but I think one of its primary roles has been to awaken the passion in all of us at Nissan. The passion from within makes the Z a one-of-a-kind entity at Nissan, providing inspiration for all of us.

In this era, we're creating vehicles for the electrification era - notably our cutting-edge EV, the Ariya - I feel it's important to have vehicles positioned across our lineup. That's why I think it's essential that the Z has its own unique and cherished specifications, including a manual transmission, something our customers expect and appreciate. Therefore, in our Nissan NEXT transformation plan, the 'A' symbolizes the Ariya, and the Z appropriately represents 'Z'.

Q: The Z's character line seems to play a major role in the car's styling. What does it do?

Shinichiro Irie, the Program Design Director of th
Shinichiro Irie, the Program Design Director of the Z Proto

Irie: To position this character line was truly like threading a needle. We're talking about pinpointing it in the space of less than 1mm. Because the new Z has a FR layout (front-engine/rear-drive), the character line conveys the transference of power from the engine to the road, moving the design's energy from the front of the body to the rear fenders, wheels and tyres. If you look closely, the line vanishes around the door handle. The reason for this is, like a drawn bow, the line pauses to collect its power before dispersing it to the rear of the car. To me, this single character line expresses the soul of Z.

Q: Why do you think the Z has had such a solid fan base, going strong for 50-plus years?

Nissan 400Z Proto
Nissan 400Z Proto

Irie: I feel it's because the Z, which some in Nissan liken to a dance partner, has always been a sports car that excites the senses while still being familiar and within reach of many people. This has allowed the Z, regardless of model or generation, to be consistently loved. I received a message on my Instagram account the other day from a father and son who own two different generations of Zs. When they said that they were looking forward to the next Z, I thought, 'We're creating a car that will start another chapter in the Z family, both vehicle generations and for Z enthusiasts.'

Q: What is your history with the Z? What have been your standout memories and experiences?

Irie: To be honest, growing up in the supercar era, I didn't have much interest in Japanese cars. But the reason that I decided to join Nissan as a designer was primarily due to the Z32 (300ZX). While I was still a student, I spotted one driving around town. I still remember the utter amazement that I felt when I first laid on eyes on it. This was something that I had not experienced since first seeing a supercar. And when I discovered that a domestic company manufactured the car, I was amazed again!

The Z32 featured a low body, lower than those of other sports cars of its day, and I never imagined that a Japanese company could create something with such iconic styling. I've been sketching sports cars for fun since I was a child. Even before I laid eyes on the Z32, I sketched cars that looked like the original Fairlady Z (240Z). I loved drawing cars with unique appearances like the Z. At school, my teacher often told me off for it in class. I guess you could say I was just preparing for my future!

Q: What are you looking forward to most about the next Z?

Irie: I'm looking forward to seeing it mixing in the world with other wonderfully designed cars. For instance, there are many notable cars on display at the Pebble Beach Automotive Week, but the vehicles driven around town by the attendees are pretty impressive. Spending the whole day strolling through the parking areas is as entertaining for me as the event itself. But, when looking at these vehicles, I felt that I still hadn't created a car that would look at home next to them. Well, with the new Z, I feel that I have finally done it.

Q: How would you like the Z to be ultimately received?

Irie: The design theme of the new Z is the fusion of traditional and modern technologies. My wish is that the Z satisfies all enthusiasts, and they will continue to love the Z. Also, by inheriting the Nissan sports car spirit, I hope everyone in the years to come will nurture the new Z.

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