The 2020 Subaru WRX STi is a distinctive Japanese sports sedan powered by a modified turbocharged flat-four engine, offering 42,000 miles and residing in Carlsbad, California. This vehicle features performance-enhancing upgrades like a carbon-fiber COBB air intake, Tomei exhaust system, air/oil separator, Go Fast Bits blow-off valve, and Koyorad radiator for optimized power distribution across all four wheels.