Lightweight is one thing but strong? I bet it is made of alloy rather than purely aluminum because pure aluminum is soft and can twisted off easily. Alloy make aluminum stronger such as Zinc combined with it. I sure hope it doesn't snap in half if you're towing something heavy
I wonder in future, Plastic driveshaft!!?? No Way!! Maybe good for preventing Teenagers from burning rubbers.
This reminded me $1000 throw away Plastic car which was a feature in Popular Science magazine back in late 80's. Plastic body, steering wheel and seat made of lawn chair. Signal lights and park lights powered by LEDs, runs by 2 cylinder engine. If you wrecked it or if it breaks apart, throw it away.
Catty