Subaru STi WRX S4 tS, 2017MY. A new Japan-only special edition WRX from Subaru Tecnica International with 10 percent more torque during acceleration, better braking and enhanced handling. Created to commemorate Subaru’s 2015 and 2016 victories in the SP3T class at the Nurburgring 24-Hour Race, the ‘NBR Challenge Package’ is optionally available for the tS adding black forged aluminum wheels and a dry carbon rear spoiler (blue car).