If the cyclist hit the front, broken neck, depending on speed. If hit the side, he would flip over the top. If he survived the flip, likely OK. One of my clients does simulation software for the highway patrol. Before the C8 came out, there were a lot of simulations run. I would expect similar results for the Fiero.
Having wrecked bikes in several situations, much depends on the rider's awareness, condition, and reflexes. I sold my bike 10 or so years ago, but barely rode it for the 2 years prior to that.
Yeah, good thing Peter wasn't driving the Fiero. We don't need bad press. To be fair, it sounds as if he wasn't a good driver, anyway. That having been stated, many people do not see motorcycles, and motorcyclists have a tendency to move in ways that take advantage of the mobility of their bike.
It seems to me that a person should lose their license on the first DUI, and their freedom on the second. To be sure, some people can stop after a drink, but anyone DUI obviously cannot, and is then basically playing roulette with other people's lives.