i went to the Sunderland Fair last night. (Not much of a fair) but there was a whole bunch of kids doing lawn tractor pulls. It's was actually pretty cool to see. Here's a video of one kid doing a pull. He built the tractor himself he says. (I can't recall what motor it was he used)
So, if I planted it in the ground, watered it every day would it grow into a real tractor puller? Those 4 banger motors are loud. Seen them at our local fairs before.