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
LEGO #42072 Technic WHACK! w/ Pull Back Toy Stunt Car - COMPLETE - FAST SHIP 673419280464 | eBay
BASH! 42073 | Technic™ | Buy online at the Official LEGO® Shop US
42072 WHACK - LEGO instructions and catalogs library
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Review: 42072 WHACK! | Brickset: LEGO set guide and database
LEGO 42072 WHACK! Instructions, Technic
LEGO 42072 Technic WHACK! Building Toy Race Car Box Manual AS IS Parts Only | eBay
Amazon.com: LEGO 42073 Technic BASH! : Toys & Games
LEGO Technic WHACK! 42072 Building Kit with Stunt Car (135 Pieces) - Walmart.com
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) : Toys & Games