Honda Accord Crosstour
The Accord Crosstour was a unique-looking wagon that hit the market in the mid-2000s. But the overall design was problematic and unpopular. The main issue pointed out with the Crosstour was lack of visibility. There were two blind spots in the rear of the vehicle that were not factored into the design. Another problem with the Crosstour was the transmission and its many issues (via Readers Digest).
The Accord Crosstour would have been popular if the design was more well thought out. But the market segment for wagons was already a lot smaller than other segments. There was no consumer appetite for a wagon like the Crosstour at the time it was out.