One of the main reasons the Datsun 240Z was so popular was because of its combination of good performance, attractive design, and relatively low price. It had a 2.4-liter inline-six engine that produced around 151 horsepower, which was quite good for the time, and it had a relatively lightweight body that made it agile and fun to drive. The 240Z also had a sleek, sporty design that was ahead of its time and remains attractive today.