This is the 1st ive ever heard of a Lumina V8 "Z50" package... wonder how true this is..
"In 1987 however, GM was experimenting with a high end performance version above the Z34 to continue where the Z34 left off. The experimental "Z50" version as it was dubbed featured all-wheel-drive and an all aluminum 5.0 L 305ci LT1-style V8 which had 285 hp (213 kW) and 280 ft·lbf (380 N·m) of torque. It never made it to production. The whereabouts of these test-cars remains unknown."
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