The 280Z featured a larger 2.8L engine. ... The 280Z also featured a much more reliable Bosch L–JETRONIC fuel injection. Due to popular demand the 280Z was more luxurious than the outgoing 240Z, and it had a much smoother ride. The 280Z was heavier than the 240Z, but with the increased engine size it was just as fast.Jun 12, 2016