The S204 sets itself apart from a standard STI through several high-end upgrades:

The is a limited-edition performance flagship originally exclusive to the Japanese Domestic Market (JDM). It was designed as a "globally pure sport sedan," succeeding the S203 with optimized driving dynamics and refined aesthetics. Key Specifications & Production Production: Limited to 600 units .

Enhanced rigidity with unique "performance dampers" developed by Yamaha and STI to reduce vibration and improve cornering. Exclusive Features

Each genuine S204 should have a numbered badge in the interior and specific engine bay identifiers.

Collector-grade examples can command significant premiums. Recent listings for highly original units have appeared on specialist sites like Classic.com and The Classic Valuer .

Features exclusive Recaro carbon-backed reclining bucket seats that are highly valuable and provide superior lateral support. The cabin also includes a numbered aluminum plaque.

Approximately 320 bhp and 432 Nm (319 lb-ft) of torque. Transmission: 6-speed manual with All-Wheel Drive.