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
BASH! 42073 - LEGO® Technic Sets - LEGO.com for kids
LEGO Technic BASH! 42073
BASH! 42073 | Technic™ | Buy online at the Official LEGO® Shop US