Originally Posted by
roving
This being but one example ....
https://www.youtube.com/watch?v=GzZhJWw_zjU
The Guinness World Record for a Model Rocket Car was broken 3 times in succession by 3 different cars on Friday 14th June 2013 at The Heathland School, Hounslow. After more than a year of design, build and preparation, 5 mixed teams raced single, double and triple motored rocket cars to smash the existing record of 88mph/142kph, achieving a whopping 204.95mph/329.85kph with their winning triple motored car.
Certainly beats the balsa and plastic Jetex car I built as a youngster.