The machining on the rotary was slated to be done at Delco Moraine in Dayton. The next door neighbor was a brake systems engineer and one day drove a rotary engine Nova test car home. This was in '73 or 74. All the local gear heads went to his house to look it over. We had never seen or heard of such a thing before. He said there was a Corvette or two running around with rotary engines installed but I never saw one of those. He said the Nova was a slug. Wish I would have got a photo.Never heard that before, had to look it up. (not that I didn't believe you)
The Monza 2+2 debuted as a single-model 2+2 hatchback. The Monza is 4 inches (100 mm) longer and weighs 180 lb (82 kg) more than the Vega from which it is derived. General Motors' John DeLorean nicknamed it the "Italian Vega", citing styling with a strong resemblance to the Ferrari 365 GTC/4.
GM had planned to introduce the GM Wankel rotary engine (licensed from NSU Motorenwerke AG) in the Monza's 1975 model. Rotary issues included mediocre fuel economy compounded at a time of comparatively high fuel prices following the Arab Oil Embargo of 1973, and GM canceled the engine (this was the same rotary engine that AMC had planned to source from GM for the 1975 Pacer). Thus, the 1975 Chevrolet Monza was launched carrying a conventional piston engine instead.