Amazon.com: for Lego Technic McLaren Senna GTR 42123 Motor and Remote Control Upgrade Kit, 2 Motors, App 4 Mode Control, Men's and Women's Toy Gifts, Compatible with Lego 42123(Model not Included)… :
LEGO® Technic 42123 McLaren Senna GTR™ | Extreme Digital
LEGO® Technic 42123 McLaren Senna GTR™ | Extreme Digital
Brickfinder - LEGO Technic McLaren Senna GTR (42123) Official Announcement!