
The main differences between the 320Li and 325Li lie in their engines, but there are also significant gaps in terms of wheels, interiors, and safety configurations. Here are more details: Engine: The 320Li has a 4-cylinder engine, while the 325Li has a 6-cylinder engine. The former is an improved version of the older E46 318i engine, while the latter features the new magnesium-aluminum alloy engine from the E90. Brake discs: The 320Li has front 292 and rear 296 brake discs, whereas the 325Li has front 300 and rear 300 brake discs. Wheels: The 320Li comes with 16-inch wheels and 205 tires, while the 325Li has 17-inch wheels and 225 tires. Notably, although both use run-flat tires, the Continental run-flat tires on the 320i are a grade lower than those on the 325i, not just in width. Interior: The 320i has a standard steering wheel, while the 325i features a sport steering wheel. Except for the top-tier 320i model, the audio systems in other versions are downgraded, including the amplifiers. In contrast, the 325i is equipped with HARMAN/BECKER mid-range audio systems across all models.


