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
LEGO Technic Kits- 42072, 42073, 42090. Not 100% Complete and Star Wars Case | eBay
Amazon.com: LEGO Technic BASH! 42073 Building Kit (139 Pieces) : Toys & Games
Review: 42073 BASH! | Brickset: LEGO set guide and database