Another day, another true-but-missing-the-point review. The fact that he compares the Cascada to a Camaro and tells us the Camaro is in most ways superior tells me everything I need to know about him.
The two market segments don't overlap, period. Younger people, single people, muscle people, would choose the Camaro, EVEN if the Cascada dash had less buttons, there was more power under the hood, and the exterior styling was given some sizzle. Older people, parents with kids, northerners wanting a single vehicle for 4 seasons, and people who don't want to attract attention to themselves (yes, people like that actually exist!) will select the Cascada, even with some shortcomings. Because to them, 200hp is not slow, the styling is not bland, and who cares if they have to take 3 days to become acquainted with the location of each button. I know it's hard for some GM fans to accept this, but there are people in this world who would not be caught dead driving a Camaro, despite the fact that it's an excellent vehicle. Right or wrong, it's fact.
Let's just enjoy this Cascada for what it is, and hopefully the next generation brings with it some styling cues from the Avista. If they can do that, while maintaining the same basic size/value proposition, they'd have a hot seller on their hands.
Alternatively....
They could also go ahead and build an Alpha based Avista, which would be a great flagship for Buick. But that would be done for a different purpose and market segment than Cascada. Cascada is ultra-low incremental cost, and should be kept and freshened. Keep supply down to not flood the lots, and every sale will put money in GM's pockets. Much like the Chevy SS.