Amazon.com: LEGO Technic WHACK! 42072 Building Kit with Pull Back Toy Stunt Car, Popular Girls and Boys Engineering Toy for Creative Play (135 Pieces)
LEGO Technic WHACK! 42072 Building Kit with Stunt Car (135 Pieces) - Walmart.com
WHACK! 42072 - LEGO® Technic Sets - LEGO.com for kids
Lego Technic combinations: beast on the left side is 42072+42073 (BASH and WHACK) while beauty on the right side is 42058+42059 (STUNT TRUCK and STUNT BIKE). : r/lego