2018 Subaru WRX STI 50th Anniversary Edition

The 2018 WRX STI 50th Anniversary Edition applied the American anniversary theme to a 200-car STI Limited allocation. Heritage Blue and silver cabin accents marked the programme while the STI retained its own 2.5-litre turbo boxer and DCCD drivetrain identity.

A 200-car allocation distinct from WRX

The factory anniversary table lists 200 WRX STI Limited-based cars, separate from 600 WRX and 250 BRZ cars. Their combined 1,050 figure describes a three-model group, not 1,050 STIs. This commemorative programme also differs from the 2008 Japanese STI 20th Anniversary model. The relevant event here is Subaru of America’s fifty years, so the model year, market and underlying STI specification must remain part of the public identity.

Subaru of America: STI anniversary allocation and trim exceptions

The STI has a different mechanical foundation from WRX

Subaru’s 2018 model release gives the STI a 305 hp turbocharged 2.5-litre boxer, a six-speed manual and the DCCD all-wheel-drive system. Those figures should not be replaced by the later 2019 STI rating or the Type RA’s separate enhanced specification. The anniversary release establishes the commemorative package, while the regular model release explains the correct mechanical foundation. Neither is a measurement of a current car after tuning or component replacement.

Anniversary trim should not become an invented performance claim

Heritage Blue, satin-chrome accents, emblems and the STI anniversary wheel presentation give the edition its visual identity. The manufacturer’s anniversary announcement does not claim a further engine-output increase. It also excludes STI from the satin-chrome mirror statement that applies to other models. Those details help distinguish the actual programme from a generic description copied from an anniversary SUV or from a normal STI wearing only a commemorative emblem.

Subaru of America: STI anniversary allocation and trim exceptions

The cabin adds a second set of recognition details

The launch describes black upholstery, silver stitching, silver seatbelts and anniversary embroidery on the front seats and carpeted mats. Those features can be photographed and compared with the original sales specification. They remain supporting evidence: a cabin can be retrimmed, belts can be replaced and mats can migrate between cars. A strong vehicle record connects the chassis and original edition documents first, then records how servicing or modifications have changed its present configuration.

Subaru of America: original 2018 STI drivetrain baseline

The shared show photograph is not a chassis census

The supplied image shows the real anniversary lineup at Chicago, including the STI, and is labelled as group context. Reusing that manufacturer programme photograph across the related profiles does not create duplicate vehicle identities. The 200-car allocation comes from the factory table, not the image. An individual STI’s original delivery, ownership and mechanical history require separate records, while repeated event appearances or advertisements should not be counted as additional completed cars.

Specifications and identity reference

Rarity and production scope

The manufacturer reference is 200 US WRX STI 50th Anniversary cars. The 600 WRX and 250 BRZ cars are separate allocations within the combined performance group and are not extra STIs or aliases. This programme is also distinct from Japanese STI anniversary models and the US Type RA. Exact completed production and survivor totals remain blank. The supplied factory lineup image is openly labelled as shared programme context rather than authentication of an individual chassis.

What the photograph represents

Subaru of America’s actual 2018 50th Anniversary lineup at the Chicago Auto Show. This shared factory group photograph is intentionally used across the eight anniversary-model profiles, rather than represented as eight separate individual-car portraits. The lineup includes the commemorative models discussed; individual engine allocations, chassis deliveries and present condition are established separately from the image.

Related Subaru profiles

• 2018 Subaru WRX 50th Anniversary Edition
• 2008 Subaru Impreza WRX STI 20th Anniversary
• 2020 Subaru WRX STI Series.White

Frequently asked questions

Did the anniversary edition receive Type RA engine output?

The cited sources establish an STI Limited-based commemorative model; the regular 2018 STI baseline is 305 hp, separate from Type RA.

Is this the Japanese STI 20th Anniversary?

No. This is the US 2018 fiftieth-anniversary programme for Subaru of America.

What is the production-count boundary for this profile?

The manufacturer reference is 200 US WRX STI 50th Anniversary cars. The 600 WRX and 250 BRZ cars are separate allocations within the combined performance group and are not extra STIs or aliases. This programme is also distinct from Japanese STI anniversary models and the US Type RA. Exact completed production and survivor totals remain blank. The supplied factory lineup image is openly labelled as shared programme context rather than authentication of an individual chassis.

Sources and further reading

1. Subaru of America: STI anniversary allocation and trim exceptions
2. Subaru of America: original 2018 STI drivetrain baseline

Research checked 19 October 2026. Linked manufacturer heritage pages, factory announcements, official distributor publications and labelled contemporary coverage support the specifically identified claims. Photographic descriptions identify the illustrated subject. Design analysis and suggested authentication steps are editorial interpretation.