They want to be strong and fit. They just don't want to go into Gold's Gym and be surrounded by spandex-clad Barbie dolls. They just want to work out in a comfortable setting. Companies that figure out how to provide that service that appeals to boomers will be successful.
They are reviving the Dodge Charger for boomers. But they don't advertise that the instrument panels are larger, the bucket seats are an inch wider on both sides or that the seats are a bit higher so you don't sink so low. The car is designed for you as you age, but they won't say that.