Racer Design Springs

How can I incorporate a yo yo into my mouse trap racer design?
I’m making a mouse trap racer (racer powered my mouse trap spring) and I was wondering if there was anyway to make my mouse trap racer faster with a yo-yo.
Put the wheels on the sides of the yo-yo and make the mouse trap pull the yo-yo string to power the vehicle. The yo-yo itself would act as the axel.
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