Hoonigan and Akira Nakai Unveil Porsche 911 RWB ‘Souseiki’

By Ben McKimm - News

Updated: 3 November, 2026

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Table of contents

Table of contents

• Handcrafted RWB Widebody and Custom Chassis Hardware
• Naturally Aspirated Flat-Six and RWB Endurance Racing Origins
• How it Could Become Yours

Readtime: 7 min

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• Hoonigan unveiled a bespoke one-off Porsche 911 Carrera S RWB build.
• Akira Nakai hand-crafted the Guards Red 997 widebody across two days.
• The 3.8-litre flat-six pairs with Bilstein coilovers and a BBi exhaust.
• Sweepstakes prize includes the car plus USD$35,000 cash.
• Entries close on 31 December 2026 via official partner channels.

Hoonigan has partnered with RAUH-Welt Begriff (RWB) founder Akira Nakai to create a one-of-one Porsche 911 Carrera S named “Souseiki,” or “Genesis.” But this isn’t another RWB build destined to sit in the garage of a millionaire that’s spent too much time on Need for Speed. No, this one could be yours as it will be the grand prize in a sweepstakes competition run by the brand, alongside USD$35,000 (approx. AUD$53,800) in cash.

Built over two days in front of a live audience in Huntington Beach, California, the 997-generation Porsche 911 features Nakai’s hand-cut widebody conversion finished in Guards Red. Mechanical upgrades beyond this are limited but include Bilstein coilover suspension, custom three-piece forged Rotiform wheels, a hand-fabricated BBi Autosport StreetCup exhaust system, and probably a few thousand cigarette butts signed (smoked) by Nakai throughout the build.

While we’ve seen our fair share of RWB builds over the years, this one is extra special as it re-establishes a partnership that began in 2011 when Nakai travelled to the United States to transform Hoonigan co-founder Brian Scotto’s 964 Turbo into the first American RWB build. While that early air-cooled model delivered 315 hp (235 kW), this new water-cooled 997 variant utilises a naturally aspirated 3.8-litre flat-six engine producing 355 hp (261 kW) and drives the rear wheels through a six-speed manual gearbox.

“Building this 911 with Hoonigan brings back memories of Scotto’s original car and how we started together,” RAUH-Welt Begriff founder Akira Nakai said. “RWB has always been about more than how the cars look. At the Idlers 12 Hour, we drive them hard. We built this 997 with that same spirit, and I hope whoever wins it keeps that spirit alive, driving it hard and making their own memories.”

Under the official sweepstakes terms, entry is legally restricted to United States residents aged 18 and older, excluding Australian enthusiasts from taking delivery of the left-hand-drive coupe. Local supercars
and Porsche 911 followers can instead follow the build through an upcoming documentary featuring Scotto, Nakai, and Alexi Smith, premiering on the Hoonigan YouTube channel on 23 November at 9 a.m. PT. Entries for eligible participants close on 31 December 2026, with every single dollar spent on official collaboration merchandise granting one entry.

Handcrafted RWB Widebody and Custom Chassis Hardware

The exterior conversion of Souseiki centres around Akira Nakai’s signature RWB widebody style, which means it’s hand-cut and assembled over a couple of days at Hoonigan’s headquarters in Huntington Beach. Working without laser guides or computer templates, Nakai cuts away the factory steel arches before riveting widened front and rear overfenders over the Guards Red paintwork. It certainly looks more like a show car than a race car, but aerodynamic stability is bolstered by a large Royal Champion rear wing, while Morimoto XB LED projector headlights and matching Morimoto LED taillights modernise the front and rear ends.

To preserve the fresh bodywork during circuit driving, they wrapped the entire vehicle in EVOLV PRO gloss clear paint protection film, and protective layers include EVOLV Titan film on the front windscreen, gloss clear headlight protection, and Paint Is Dead PROCOAT ceramic coating across the panels.

Filling out the extended wheel arches are custom Rotiform three-piece forged alloy wheels wrapped in Yokohama ADVAN Apex tyres. Meanwhile, hand-built BBi Autosport hardware has been installed beneath the chassis, including a custom cat-back exhaust system engineered from stainless steel to give the car a little boost in power, torque, and response.

The inside follows the usual RWB spec sheet, with a stripped passenger cell, OMP RT fixed-back racing seats paired with OMP six-point safety harnesses anchored to a hand-welded BBi StreetCup harness bar. Finally, the steering wheel is an individually numbered 15th-anniversary Hoonigan x RWB steering wheel, with a matching machined shift knob.

Naturally Aspirated Flat-Six and RWB Endurance Racing Origins

Under the rear engine lid, Souseiki retains Porsche’s water-cooled 3.8-litre naturally aspirated flat-six petrol engine, which delivered 355 hp (261 kW) and 400 Nm (295 lb-ft) of torque when new.

This power is sent to the ground through a six-speed manual gearbox and rear-wheel drive. That’s good enough to send the sports car from zero to 100 km/h (62 mph) in 4.8 seconds. Well, it was new and before the larger wheels and tyres were added, so expect it to be closer to the 5.2-second mark in its current state. It should sound pretty good while doing it, however.

You could say the same thing about the mechanical philosophy behind Souseiki. It doesn’t look like it would drive particularly well, but it draws direct inspiration from Japanese grassroots endurance motorsport, specifically the annual Idlers 12-Hour race held at Twin Ring Motegi. Nakai engineers these customer cars to endure track abuse, and this approach mirrors the original 2011 partnership between Nakai and Brian Scotto, which saw an air-cooled 1991 Porsche 964 Turbo converted with a single-turbo 3.3-litre engine producing 315 hp (235 kW) and 450 Nm (332 lb-ft). By contrast, this more modern 997 platform offers linear throttle response, sharper turn-in, and a modern multi-link rear suspension. It’s also a cheaper starting point than the old 964s.

How it Could Become Yours

Souseiki serves as the grand prize in the Hoonigan x RWB sweepstakes, which comes with USD $35,000 in cash in the trunk to assist the winner with registration and running costs.

Entry is open exclusively to legal residents of the United States aged 18 and older, with every single dollar spent on official collaboration apparel or accessories at Hoonigan.com or Rotiform.com generating one automatic sweepstakes entry.

Entries close on 31 December 2026, after which an independent third-party sweepstakes administrator will conduct a randomised draw. Global fans and Australian viewers can witness the complete live assembly process in a feature-length documentary that profiles Scotto, Nakai, and Alexi Smith, scheduled to air on the Hoonigan YouTube channel on 23 November at 9 a.m. PT.