Subaru Impreza WRX STI
The 2007 GRB WRX STI reinvented Subaru's flagship as a five-door hatchback with 308 PS, a driver-adjustable center differential and three engine-response modes.
Subaru Impreza WRX STI (GRB) · Tokumeigakarinoaoshima · CC0 1.0
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More than a set of wheels.
Fuji Heavy Industries launched the third-generation Impreza WRX STI in Japan on October 24, 2007. The first GRB replaced the prior sedan shape with a widened five-door hatchback and combined a Japanese-market 1,994 cc EJ20, six-speed manual, full-time four-wheel drive, multi-mode DCCD and multi-mode VDC. This identity does not cover export-market 2.5-litre versions or later four-door WRX STI models.
Look a little closer.
The launch car put four exhaust tips under a practical hatchback tailgate—two on each side.
Photos show an example of the model or generation. The pictured vehicle’s year, equipment, or modifications can differ from the specification described here.
Why Subaru changed to five doors
Subaru said the hatchback body helped balance reduced front lift with useful rear downforce. A longer wheelbase and wider tracks supported stability, while shorter overhangs reduced the car's resistance to rotating into a turn. The shape was therefore part packaging decision and part airflow-and-handling plan.
Source: Subaru · all-new WRX STI launch release ↗Three controls with different jobs
SI-Drive changes how the engine answers the accelerator. DCCD changes how the center differential manages the all-wheel-drive system. Multi-mode VDC changes the stability system's intervention. They give the driver separate choices, but Subaru still described VDC as an assist rather than a guarantee of grip.
Source: Subaru · all-new WRX STI launch release ↗Where these facts come from
- Subaru · all-new WRX STI launch release
- Subaru · October 2007 WRX STI catalog record
- Subaru · 2007 Tokyo Motor Show preview
Selected facts checked for this edition. Some source pages link to broader model families. Last reviewed 2026-10-05.