Unsuccessful automobiles.

The Hudson Gnat

This small version of the popular Hornet was known as "the car with the imaginary backseat,"  years before AMC made one for real with the Gremlin.

The Ford Mocus
Drivers could not successfully direct this vehicle.

The Chrysler Le Viscount
Sequels are seldom as good as the original.

The Nissan Rubric
Dull.

The Suzuki Geisha
Putting a lighter spin on the Samurai's notorious rollover problems, the marketing campaign ("It Rolls Over...For You!") offended geisha and disenchanted the public.

The Nash Blobular
A monster-movie inspired relic of the early 1950s, the "monster Nash" was also known as "Nash Teeth" and "the Thing that Ate Nash."

The Holden Oldie
Attempt at retro seldom works in automobile design.

The Ford Bhopal
Only regional appeal in foreign markets.

The AMC Burner
"Hot stuff!" they said; "Combustible!" said National Highway Traffic Safety Administration.

The Cadillac Boat
Just a bigass car with power everything. "Feels like you're driving nuthin'!" said its fans. Did not feel that way to the people outside of it.

The Dodge Bullet
Name was just silly.

The Pontiac Zipper
Someone asleep in the Department of Naming the Cars that week.

The Chrysler Plea
Part of the original bailout in the 1970s.

The Buick YCAC
The popularity of Ford's LTD led to Buick trying nonsense initials on this car. Unfortunately people guessed what  it stood for (You Can't Afford a Caddy) and caught a resentment.

The Volkswagen Karmann Sutra
Too racy for the 1960s.

The Saab Story
"Not funny," said Car and Driver.

The Rolls-Royce Spook
Went one specter too far.

The Volvo Box
At this point they just threw up their hands and admitted the cars were boxy, so they released a cube with wheels. Didn't work out. Years later Nissan had better luck with essentially the same car.

The Subaru Emote
Even too cutesy for Subaru.

The Renault Guppy
Just sad.

Then there's this.