In Japanese automotive history, has there ever been another Kei-car that pursued the “joy of driving” as stoically as this? The Honda S660, which was regrettably discontinued in 2022, is a true masterpiece.
This is not just a mere convertible; it features a “Mid-ship Layout (MR)” with the engine mounted right behind the driver. This single fact proves just how special this machine really is.
Today, we dive into the secrets of the S660’s “heart,” which has captured the attention of JDM enthusiasts worldwide, and introduce an immaculate example currently available in our inventory.
The Heart: Why S07A?
When talking about the S660, there is one technical topic that cannot be overlooked: “Why did Honda choose the mature S07A engine over the newer S07B?”
At the time of development, Honda’s Kei-car lineup was already transitioning to the next-generation S07B engine. However, the S660 engineering team stubbornly insisted on the proven “S07A 3-cylinder Turbo.” Hidden behind this decision was a borderline obsessive passion from Honda’s engineers.
Elevating an N-BOX Unit into a “Sports Engine”
Originally, the S07A was developed for practical, high-volume family cars like the best-selling N-BOX. However, Honda didn’t just carry it over. To fit the S660, the internals were completely re-engineered into something entirely different.
- Custom-Designed Exclusive Turbocharger: Tuned specifically for a sharp, instantaneous throttle response the moment you step on the gas. To improve turbocharger response, the turbine and bearings are made 12% lighter. To utilize exhaust energy without loss, the turbocharger is mounted directly to the exhaust port without going through the exhaust manifold.
- Injectors and pistons that improve combustion efficiency: Piston top shape that induces tumble flow of incoming mixture. Two injectors are installed per cylinder to promote gasoline atomization.
- High-RPM Capability: Unlike the family-car version, it features heavy-duty internal components designed to withstand the abuse of spirited sports driving. Specifically, roller rockers to reduce friction loss, Piston skirt coating for oil film retention and high rate valve springs.
While based on a practical utility unit, they sublimated it into a sharp, high-revving “Honda Music” experience.
Why the Newer S07B Wouldn’t Cut It
The newer S07B engine is a long-stroke design, excellent for low-end torque around town and fuel efficiency. But that is the correct answer for a daily commuter, not a sports car.
What the S660 demanded was the exhilarating rush of the tachometer needle snapping toward the redline and a direct, mechanical connection. By sticking with the mature S07A and applying sophisticated, bespoke tuning, Honda created the “authentic sports engine” they envisioned. There was simply no other way.
[In Stock Now] Experience the Essence of Driving: The S660 “β” 6MT
We are thrilled to announce that a pristine example, perfect for extracting 100% of that S07A engine’s potential, has just arrived in our inventory.
This is the “β (Beta)” grade—a spec that strips away unnecessary frills to focus purely on the essence of driving. The transmission is, of course, the highly engaging 6-speed manual (6MT), allowing you to feel the joy of direct control.
Premium Details & Comfort Features
While it is a driver-focused model, it is fully equipped with amenities that elevate your daily drives:
- Sharp Exterior: Finished in a stealthy, sophisticated Gray body color that highlights the contours of the body、complemented by factory aluminum wheels. It also features LED headlights that sharpen the front fascia while ensuring excellent night visibility.
- Refined Black Interior: The cabin is beautifully appointed in a clean, unified black. Crucially, this is a strictly non-smoking car. The seats and interior trim are in excellent condition, maintaining a fresh and pristine atmosphere.
- Modern Infotainment: Equipped with Smart Key & Push Start for seamless operation. The center dash features a Display Audio system with Bluetooth and HDMI connectivity, allowing you to easily mirror your navigation or stream your favorite driving tracks.
- Backup Camera for Peace of Mind: While mid-ship cars can have limited rear visibility, the built-in backup camera makes parking and reversing completely stress-free.
Conclusion: A JDM Holy Grail Worth Owning Today
Feeling the engine singing right behind your back while row-shifting through a crisp 6-speed manual on a winding road—this offers an organic, visceral connection with the machine that modern EVs simply cannot replicate.
Experience the thrill that transcends the Kei-car segment, delivered by the highly refined S07A turbo. Why not see the true value of this immaculate S660 β for yourself?
This absolute gem will not last long. Contact us today to secure your ultimate JDM weekend toy!
