Perfect, it's the evolution of the original Mini Trail Z50. You can't kill those things.
How many of us abused those poor things when we were kids? In the '70s it was the first motorized vehicle a lot of us piloted.
We had one that looked a lot like this
Yup, mine was blue. A 1973 model, IIRC.
Dad bought it new and it was still going strong at least until the mid-eighties when it was handed down to a cousin after my brother and I had long outgrown it. Even as a 6' tall, 180 pound teenager I still loved to get on the little bike and thrash it up and down the long driveway at my grandparents' place.
And as a kid, I remember spraying the hot cylinder head with a blast of cold water from the garden hose every 20 minutes or so, thinking I was doing a good thing by keeping the engine cool. Hey, liquid cooling was the wave of the future, right? Plus, it made really cool metallic pinging noises and an awesome cloud of steam!
Fantastic little bikes, and yes, damn near indestructible.