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"Crash tests have proven it among the strongest chassis.
All it takes is waterjet cutting the aluminum and polypropylene sheets, then bonding the sheets together. It's not that expensive."
I would have to see $ with shipping, and long term fatigue results. There are many other Composite Sandwich construction methods with a track record, and
"not that expensive" is highly relative. I'm still trying to find a "reasonable price and availability" for pultruded composite rectangular tubing in small quantities.
I don't have a water jet cutter, and I bet they are not cheap.
I did a quick look at their site and did not investigate very far, had to make dinner, but I did not see any completed vehicles with a long history.
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