Making it STRONG - the BIG Bobby Car method of production.
We have previously stated that BIG Bobby Cars are stronger than ordinary ride-ons because they are made using "blow moulding".
By looking at the underside of any BIG Bobby Car, you will see that it's a covered and rather "solid" bottom. Blow moulding allows it to be fabricated for strength and using less components to hold pieces together. In fact, the BIG Bobby Car body is the main piece that holds the driving systems together.
Alternative method to shape a plastic body out of plastic is machine pressing the "shell" of the car to conform to the required shape. The result is something with a "hollow" bottom. This makes connection parts necessary to create covers, and most ordinary ride-ons simply come without a bottom cover.
Now you know why BIG Bobby Car is so strong. Find one at http://www.partyandplay.com.sg/big-bobby-car/