We rented a small renault hatch back in France that worked with the Bike Pro tandem case. I don't recall the model (and its been 12 years now so it would have changed anyway).
A number of hatch backs will work if you only need two seats, and can fold down the back seats.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.