328i

328i is a badge used by BMW on its 3 Series line. It denotes a mid-range configuration and has been applied to several generations, with engine choices ranging from a 2.8-liter inline-six to a 2.0-liter turbocharged four, depending on the model year and market. The i stands for fuel injection, a hallmark of modern BMW engines. Note: the 328i designation is distinct from the vintage BMW 328 sports car of the 1930s.

In the mid-1990s, the 328i appeared on the E36 3 Series with a 2.8-liter inline-six (M52), delivering around 190 horsepower.

In the E46 generation (late 1990s–mid 2000s), the 328i used a 3.0-liter inline-six (M54), rated roughly 225–235 hp.

Starting in the late 2000s, the 328i badge appeared on the E90/E91/E92 family with a 3.0-liter inline-six (N52) producing around 230 hp.

From 2012, the 328i shifted to a 2.0-liter turbocharged inline-four (N20) in the F30/F31 generation, delivering about 241 hp, with xDrive variants available for all-wheel drive.

Across markets, the 328i name has been intermittently replaced by other badges such as 330i or 340i for similar powertrains; the 328i designation has varied by region and model year. The badge generally sits between lower-end 320i/320i Sport models and higher-performance variants, reflecting a balance of performance and efficiency rather than a single, fixed engine across all generations.