Mazda MX-5 Miata ND Japanese RS Soft Top

Identity and scope

The Japanese Roadster RS is a soft-top variant within the Mazda MX-5 Miata fourth generation (ND). Mazda launched it in Japan on 1 October 2015. Its defining equipment comprised Bilstein dampers, larger brakes, a front suspension-tower brace and dedicated Recaro seats. Mazda’s RS introduction.

Roadster is the Japanese model name. This record covers the Japanese soft-top RS; the retractable-hardtop RF RS is a separate specification. Mazda’s later range documentation lists the soft-top RS with SKYACTIV-G 1.5 and the RF RS with SKYACTIV-G 2.0. Mazda’s 2018 range announcement.

Development and production context

The RS belongs to the fourth-generation two-seat MX-5 programme, which combined Mazda’s KODO design language and SKYACTIV engineering with an emphasis on driving sensations. Mazda announced the start of ND production at Ujina Plant No. 1 in Hiroshima, Japan, on 5 March 2015, initially building cars for the domestic market. This establishes the generation’s manufacturing context; it does not establish an RS-specific assembly start date. Mazda’s production announcement.

The October RS introduction was a subsequent addition to the Japanese range. Its launch date is a calendar date, not a designation of an overseas model year.

Japanese launch specification

At introduction, the rear-wheel-drive RS used a 1,496 cc DOHC 16-valve four-cylinder SKYACTIV-G 1.5 engine and six-speed manual transmission. Mazda quoted 96 kW (131 PS) at 7,000 rpm and 150 N·m at 4,800 rpm.

The Recaro seats were jointly developed to support the occupant during cornering and used Alcantara and Nappa leather. Standard equipment included seat heating and an induction sound enhancer. Mazda presented the chassis changes as improving steering response and feedback during demanding driving. These specifications describe the October 2015 Japanese launch configuration. Mazda’s launch specifications and equipment list.

Later development

Mazda’s June 2018 announcement retained the soft-top RS with the 1.5-litre engine and six-speed manual transmission in the revised range scheduled for sale on 26 July. The soft-top engine received combustion and response improvements, while the range gained telescopic steering adjustment and expanded safety equipment. The substantial 2.0-litre engine revisions discussed in the same announcement concerned the Japanese RF, and should not be assigned to this soft-top variant. Mazda’s 2018 revisions.

On 5 October 2023, Mazda announced another major revision, with Japanese sales planned for mid-January 2024. The soft-top RS remained a 1.5-litre manual grade. Applicable changes included an asymmetric limited-slip differential, revised electric power steering and DSC-TRACK stability-control mode. Mazda also announced a 3 kW increase for the Japanese 1.5-litre engine, revised lighting and an 8.8-inch centre display. These belong to the later specification and should not be backdated to 2015 cars. Mazda’s announcement for the 2024 revision.

These dated announcements document the RS at introduction and in subsequent revised ranges. They do not establish a final production date or an RS-specific production total.

Place in the model line

The RS illustrates how Mazda developed the ND through a combination of chassis equipment, driver support and successive technical revisions. Its historical significance is best understood within that continuing development, rather than through an unsupported claim of rarity or a unique production total.

For the broader history, see the MX-5 Miata model record and ND generation. Existing sibling records include the Japanese NR-A and 30th Anniversary Edition.

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Mazda MX-5 Miata ND Japanese RS Soft Top SKYACTIV-G 1496 cc Engine
The Japanese ND Roadster RS paired a 1,496 cc SKYACTIV-G engine with a six-speed manual. This record documents its launch specification and the later 2018 development.
Engine