Building the Fastest-Possible Lego Car

On ProjectAir, James wanted to know how fast he could get a Lego car to go using only Lego parts. He built a number of different vehicles and tested their speeds. It’s fascinating to see how gear reductions, different wheel sizes, different motors, etc. and different combos of all of these can make a difference.

After getting up to 12km/h with Lego parts, he decides to cheat and starts messing around with rocket-powered Lego cars and a more powerful non-Lego motor that ends up getting the car up to 42km/h before the Lego bits vibrate the car apart.

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