The H3 was a final hurrah for the Hummer brand based on the Chevy Colorado. Perhaps the most questionable thing about the Hummer H3 was the five-cylinder engine. At the time the H3 was released, the appetite for gas-guzzling SUV models was waning (via Readers Digest).
The Hummer H3 looked like the larger Hummer models that were offered. But the H3 didn’t offer anything unique in value, and it was overpriced. The H3 was notoriously unreliable, with the five-cylinder engine being the worst culprit. Consumers didn’t want gas guzzlers by the time the H3 was released and the sales reflected that.