Which one of these are unlike the others: Toyota Supra, Mitsubishi 3000GT, Mazda RX-7, Nissan 300ZX?
All of these are iconic 90s Japanese sports cars, but the RX-7 is unique in that it has a rotary engine, as opposed to the piston engines of the other cars.
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(Optional) Context information is below.
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Answer the following query.
Which one of these are unlike the others: Toyota Supra, Mitsubishi 3000GT, Mazda RX-7, Nissan 300ZX?

user
All of these are iconic 90s Japanese sports cars, but the RX-7 is unique in that it has a rotary engine, as opposed to the piston engines of the other cars.
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