Don't know, but that sucks that they've downgraded that. I have one of the older ones (not sure how old as I bought it used, but likely at least 3-4 years) that had real plastic and it was fairly easy to fit 12V landscaping lights inside them. Actually, all 3 of the ones I've gotten used (F150, Mustang, Hurricane) had clear lenses. I would think the Hurricane would have been the last one they'd downgrade this way given the amount they charge for them.
F-150 - 24-36V with homebrew 100A variable-speed motor controller, 4x 775 motors (no, it's NOT all-wheel-drive--look HERE
for more details!)
Pink Rocket Princess Mustang - 15mph, 36V, 4x 775 motors, homebrew PWM controller rev 2....
Hurricane - 24V w/50A step-down controller, 775 motors