Remove the top and bottom flaps and one of the short sides of a large rectangular box. Put these five pieces aside.
Cut a flashy car silhouette out on both of the long sides with the open end at the front.
Using duct tape, join two reserved flaps together. Shape this piece over the front of the car to create the hood, using hot glue to secure it in place.
Cut out a 10-cm wide rectangle from the back of your car to make a spoiler.
Layer two 1-m stretches of duct tape together, sticky sides in, to create a strap. Repeat to make a second strap. Tape each strap to the inside back of the car. With your child inside, bring the straps over her shoulders and tape to the inside front.
Cut circles out of reserved cardboard for wheels and personalize your car craft using paper, paint and coloured tape.