The Task Force Data Analysis held its 12th session on 28 April 2026. Database version 3 requires further corrections to reflect IWG decisions on v_test, parallel and serial hybrids, and German input; version 4 will be delivered. The group reviewed German input on database issues and decided to establish an Excel list documenting observations, background information, and proposed solutions. Additional data are needed on gear shifting during pass-by measurement, ICE ON/OFF shifting, low speed measurements below 30 km/h, high performance vehicles with acceleration greater than 5 m/s² at high speeds, and EV data.