The development of the GRMN Yaris began from Morizo's desire to "deliver cars to customers that evolve quickly and can be tailored to individuals like in the field of motorsports." Using lessons learned from motorsports competition, body rigidity has been enhanced, weight has been reduced by approximately 20 kg, overall width has been increased by 10 mm for aerodynamic improvement, and vehicle height has been reduced by 10 mm for a lower center of gravity. Also, it uses mechanical LSD, a close-ratio gear transmission, and a low final gear set, which has been improved through repeated "breaking and fixing". The GR Yaris has evolved into a car that can be driven faster and with more peace of mind, with improved braking force, grip, cornering and following performance based on feedback from professional drivers.