Nissan’s primary compact car in North America, the Sentra, has been highly successful for decades, and for a good reason. Known for its safety above all else, the Sentra has been finetuned over the years to become sleeker, roomier, and even more reliable. However, not every year model of the Nissan Sentra stands on equal footing. Although Nissan has toiled away to perfect the Sentra as much as possible, only some experiments have been a runaway success, making specific models inferior to others.