The first generation of the Honda Odyssey was not the polished minivan that we see today. The Odyssey was Honda’s attempt to enter the lucrative minivan segment. The problem with the first generation of the Odyssey was that it was undersized and had a four-door design, instead of a sliding rear door like other minivans (via Readers Digest).
The first generation of the Honda Odyssey was also sold as the Isuzu Oasis minivan. The design was not popular and the sales numbers were low. The van was redesigned for the 1999 model year. The second incarnation of the Odyssey was much more popular than this model.