The 320i edges the 328i’s fuel economy by just 1mpg in the city and on the highway. The 320i is 24 city and 36 highway compared to 23 city and 35 highway on the 328i. A one mile-per-gallon difference in the 320i will not be significantly noticeable during day-to-day driving and refueling.
320I Vs 328I >> BMW 320i - U.S. Debut

320I Vs 328I >> BMW 320i - U.S. Debut

The main differences are under the hood and on the window sticker. The 320i uses a turbocharged 2.0-liter four-cylinder engine with 180 horsepower, and the 328i has a 240-hp version of this engine.
320I Vs 328I >> 2016 BMW 340i vs Dinan BMW 328i: The Ultimate Sports Sedan Comparison [Review] - The Fast Lane Car

320I Vs 328I >> 2016 BMW 340i vs Dinan BMW 328i: The Ultimate Sports Sedan Comparison [Review] - The Fast Lane Car

In the BMW 320i vs 328i comparison, the second one will be the winner in this category. The 320i has a powerful 2.0L TwinPower turbo engine that runs at a maximum 180hp and 200 pound-feet of torque. The 328i also runs on a 2.0L turbo engine but its maximum outputs are 240hp and 258 pound-feet of torque.
320I Vs 328I >> Convert Drum Brakes to Disc Brakes in 3 Steps! - CAR FROM JAPAN

320I Vs 328I >> Convert Drum Brakes to Disc Brakes in 3 Steps! - CAR FROM JAPAN

The 2017 BMW 320i vs 2017 BMW 328i. What's Your Choice? Serving Florence, Sumter, and Darlington, SC. As luxurious sedans that are designed for families, the BMW 320i and BMW 328i offer plenty of premium features and sophisticated technology.
320I Vs 328I >> ONEighty | OE-S F30 LED Headlight Upgrade for Halogen & Xenon (UPDATED 11/6)

320I Vs 328I >> ONEighty | OE-S F30 LED Headlight Upgrade for Halogen & Xenon (UPDATED 11/6)

Definitely test drive both the 320i and the 328i (and you may as well give the 335i a shot). I'm betting that your current car, the '06 Civic Si, isn't far off from a 320i in a drag race. Both of them should be around 7 seconds.
320I Vs 328I >> 2012 Audi A4 vs. 2012 BMW 328i vs. 2012 Mercedes-Benz C250 Comparison Test

320I Vs 328I >> 2012 Audi A4 vs. 2012 BMW 328i vs. 2012 Mercedes-Benz C250 Comparison Test

The 2014 BMW 3 Series comes in four main variants -- 320i, 328i, 328d and 335i -- and the differences between the 328i and 335i are subtle but certainly noticeable. Exterior Based on the same chassis, the BMW 328i and 335i share nearly every exterior dimension.
320I Vs 328I >> BMW F30 on 20inch rims

320I Vs 328I >> BMW F30 on 20inch rims

Your 320i with metallic paint, sunroof, heated seats, and folding rear seats will sticker at $37,270. All-wheel drive is $2,000 more. Honestly, most of us on the staff would splurge for the 328i.
320I Vs 328I >> Sport vs M Sport Steering wheel

320I Vs 328I >> Sport vs M Sport Steering wheel

320i vs 328i tuning potential Do the 320i and 328i have different tuning potential? Or is the 320i capable of the same power once you switch out the bumper and allow for alternative exhaust options?
320I Vs 328I >> BMW F32 435i - ADV05 MV.1 CS Monoblock Wheels

320I Vs 328I >> BMW F32 435i - ADV05 MV.1 CS Monoblock Wheels