LEGO Technic BASH! 42073 Experience the amazing power and acceleration of this rugged, high-speed LEGO® BASH! model, featuring a red, black and gray color scheme with racing stickers, sturdy front bumper, large rear spoiler and wide black rims with low profile tires. This advanced building set is equipped with a pull-back motor, and an engine pop-out function, which is activated on impact. Combine with the 42072 WHACK! pull-back model for extended play possibilities or to create the WHACK! âNâ BASH! combi model.. Features a powerful pull-back motor, sturdy front bumper, large rear spoiler, wide black rims with low profile tires and an engine pop-out function, which is activated on impact Check out the red, black and gray color scheme with cool racing stickers Bring on the 42072 WHACK! and let the race begin Activate the pull-back motor to launch the high-speed BASH! New-for-December-2017 See the engine fly out of the vehicle body on impact This LEGO® Technic advanced building set is designed to provide an immersive and rewarding building experience Combine with the 42072 WHACK! to create an awesome WHACK! âNâ BASH! combi model with 2 pop-out engines! Suitable for ages 7-14 BASH! measures over 2â (7cm) high, 6â (17cm) long and 3â (9cm) wide Combi model WHACK! âN' BASH! measures over 3â (9cm) high, 7â (20cm) long and 3â (10cm) wide