Learning to adjust the seat on a bicycle:
Learning to "grease up" a bike chain:
Learning how to change a tire!!
Checking the oil!!
As strange as this sounds....in the midst of all these "vehicular" things...the next requirement was changing a light bulb in a lamp...LOL....so we did that too!
Last, but not least, the boys learned how to replace a taillight.
Then they all took a turn sitting in the race car :) They thought it was super cool!