AMC Pacer (1975-1979)
Sure, there were a lot of ugly cars out there in the '70s (hello, Pintos and El Caminos of the world) but the AMC Pacer was a special kind of ugly. It was a compact, but not really. In fact, it was "the world's first wide-body compact, a segment nobody had ever identified before, much less pined for," according to The Truth About Cars. "An obese compact for obese compact-haters."
Ford Taurus (1996-1999)
Why mess with success? That's the moral of the story for Ford, which saw sales plummet after redesigning its popular Taurus in 1996 with ovals — lots of ovals — creating an odd effect akin to a squashed marshmallow on wheels. Road and Track even calls the third-generation Taurus "the saddest car ever made," and noted that Ford never seriously competed in the sedan segment again.
Suzuki X-90 (1996-1998)
"It's a no-butt, bubble of a thing, a laugher if ever there was one," the Washington Post writes of the Suzuki X-90. "It comes with a chopped-off tail, mostly glass canopy, bug-eyed headlamps and bulging fenders. It's so ugly, it's funny. It's so funny, it's cute." Sadly, there weren't many buyers who came down on the "cute" side of the fence, and Suzuki halted production on this bizarre little SUV after a few years.
Pontiac Trans Sport (1990-1996)
The fundamental truth of minivans is that they aren't cool and carmakers are probably better off embracing this fact than pretending otherwise. But poor Pontiac didn't get that memo before designing the oddly pointy Trans Sport, which the company described as the "space vehicle of the '90s." (We suppose that does sound better than "Dust Buster on wheels.") Starting in 1997, Pontiac dropped the futuristic styling in favor of a more traditional look.
Vanguard CitiCar (1974-1977)
We'll forgive you if you mistake the CitiCar for an amusement park ride or an overgrown wedge of cheese. In reality, this weird, triangular little contraption was an electric car meant to appeal to consumers during the oil crisis in the mid-'70s. "It was a glorified golf cart which must have been absolutely miserable to drive in actual traffic," opines CarBuzz, noting that the car had a top speed of 25 mph and a whopping 40-mile range. Amazingly, around 4,400 of them actually sold.