For enhanced safety, the front and rear seat shoulder belts of the Nissan Altima have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Toyota Corolla doesn’t offer pretensioners for the rear seat belts. For better traction, the Altima has larger standard tires than the Corolla (215/60R16 vs. 195/65R15). The Altima SR/Platinum’s tires are larger than the largest tires available on the Corolla (235/40R19 vs. 225/40R18).