bmw 325i vs 328i

BMW 325i vs 328i: How Do These Popular 3 Series Models Compare?

BySarah Rogers Hours Updated on

Are you looking to buy a BMW 3 series but torn between the 325i and 328i models? This in-depth comparison will help you decide.

The BMW 3 series is one of the most iconic luxury sports sedans on the market. Distinguished by its athletic handling and refined interior, it’s a favorite for driving enthusiasts. Two of the most popular models in the 3 series lineup are the 325i and 328i.

While the 328i is the higher performing and more powerful option, the 325i offers strong value. So which is the better buy? The 328i is the way to go if your budget allows, but the 325i remains a solid choice if you want to save some money.

Below we’ll compare the 325i and 328i across all the factors that matter most:

  • Performance and engine
  • Exterior dimensions
  • Interior space and features
  • Technology and amenities
  • Value and cost comparison
  • Which is the better buy?

After reading this comprehensive comparison, you’ll have all the details to decide whether the 325i or 328i is the right 3 series for you.

Performance and Engine Differences

The most noticeable difference between the 325i and 328i lies under the hood.

  • The 328i is powered by a 3.0-liter TwinPower Turbo inline 6-cylinder engine putting out 240 horsepower and 255 lb-ft of torque. This allows a 0-60 mph time of just 5.4 seconds and a top speed of 155 mph.
  • The 325i features a 2.5-liter TwinPower Turbo inline 4-cylinder with 200 horsepower and 185 lb-ft of torque. It reaches 60 mph from 0 in 6.5 seconds and has a top speed of 145 mph.

So when it comes to performance, the 328i is the clear winner. The larger 3.0-liter engine gives it a full 40 more horsepower resulting in quicker acceleration and higher top speed. The 328i is nearly a full second faster getting to 60 mph from 0.

The 328i also edges out the 325i when looking at fuel economy estimates:

  • 328i gets 23 mpg city / 34 mpg highway / 27 mpg combined.
  • 325i is rated for 22 mpg city / 33 mpg highway / 26 mpg combined.

So you’ll get slightly better gas mileage with the more powerful 328i engine. This gives the 328i the best combination of power and efficiency.

Takeaway: The 328i provides markedly better performance and acceleration along with slightly higher fuel economy. Go with the 328i if you prioritize power and 0-60 times.

Exterior and Interior Dimensions

The 325i and 328i share nearly identical exterior dimensions since they are both built on the same 3 series platform.

Exterior dimensions:

  • Length: 182.5 in
  • Width: 71.3 in
  • Height: 56.3 in
  • Wheelbase: 110.6 in

With the exact same length, width, height, and wheelbase, the exterior size and road presence of the 325i and 328i are identical.

Inside the cabin, passenger and cargo space are again equal in both models:

  • Seating capacity: 5 passengers
  • Passenger volume: 97 cu ft
  • Cargo volume: 17 cu ft
  • Fuel tank: 15.8 gallons

Front and rear seat legroom, shoulder room, and headroom are all the same. So neither model has an advantage when it comes to interior passenger room or cargo capacity.

Takeaway: The 325i and 328i share virtually identical exterior and interior dimensions. No advantage for either model here.

Interior Features and Technology

BMW is renowned for its premium interiors, and both the 325i and 328i live up to expectations. They come well-appointed with leather seating surfaces, power front seats, dual-zone automatic climate control, and an 8.8” central display screen.

Some standard interior features:

  • Leatherette upholstery
  • 8-way power front seats
  • Split folding rear seats
  • Auto climate control
  • SensaTec dashboard
  • Ambient lighting
  • Universal garage door opener

Being driver-focused cars, both models also come standard with features like rain-sensing wipers, anti-lock brakes, dynamic cruise control, and excellent sound insulation to keep the road noise out.

In terms of technology, Bluetooth, USB inputs, and a 9-speaker sound system with HD radio are standard. The iDrive infotainment system with integrated controller knob makes it easy to control settings.

One area where the 328i has an advantage is with optional packages and upgrades. Some examples include:

  • Navigation system
  • Heads-up display
  • Satellite radio
  • Wireless charging
  • WiFi hotspot
  • Parking assistant
  • Active driving assistant
  • Harman Kardon surround sound system

The 328i offers additional luxury and technology packages above what’s available on the 325i. So while both provide an excellent standard feature set, the 328i can be outfitted with more upgrades.

Takeaway: The 325i and 328i have similarly appointed cabins and standard tech. The 328i offers more optional packages and upgrades.

Value and Cost Comparison

The 325i starts at an MSRP of $34,900 compared to the 328i at $38,350 – a difference of $3,450. That gap widens as you add options.

With the incentives and discounts currently available, here are some example pricing scenarios:

  • 325i well-equipped for around $37,000
  • 328i well-equipped for around $41,500

The 325i also has lower ownership costs in some areas:

  • Insurance rates average 5-10% lower
  • Slightly cheaper oil change and maintenance
  • Less expensive tires to replace

However, the 328i typically holds its value better long term. After 5 years, it will have a higher resale value percentage compared to original MSRP. Leasing prices are also more favorable for the 328i.

So is the added performance of the 328i worth the increased upfront and long term costs? That depends on your budget and needs. But strictly from a value perspective, the 325i wins out.

Takeaway: The 325i has a significantly lower starting price and lower ownership costs. But the 328i will hold resale value better over time.

Which Is the Better Buy?

If you’ve got the budget, the 328i is the better performing and more powerful model overall. The larger 3.0L engine provides a noticeable boost in acceleration and speed compared to the 325i. It also offers additional luxury packages and options.

But the 325i remains an excellent choice if you want to save some money without compromising much. Its 200 hp engine is still pretty quick and fun to drive. The interior and tech offerings match up closely with the 328i. And you’ll save on upfront purchase price, insurance, and maintenance.

Our recommendation:

  • If performance is your top priority, go with the 328i.
  • If you want the best value, the 325i is probably your pick.
  • Choose the 328i for extra power and exclusivity.
  • Pick the 325i to save thousands on purchase price.

Either model will provide an amazing driving experience – it comes down to your needs and budget. Use this comparison to weigh the pros and cons of the BMW 325i vs 328i.

Conclusion

The BMW 3 series is an icon, and within it the 325i and 328i represent an appealing combination of luxury and driving performance. The 328i is objectively the better performer, but comes with a higher price tag. The 325i delivers strong power and value as a less expensive alternative.

Use this detailed comparison of engine, dimensions, interior, technology, pricing and more to make an informed decision between these two stellar sedans. Consider your priorities – power or value – and pick the 325i or 328i that’s right for you. Whichever you choose, you’ll love getting behind the wheel of these Ultimate Driving Machines.

Sarah Rogers

As BMW Insights' lead test driver, my passion began reading car magazines as a teen. With a journalism degree and experience testing hundreds of vehicles, BMW quickly became my favorite for its blend of performance, luxury, and tech. Extensive BMW performance training gives me a racer's perspective. I provide concise, analytical test drives and comparisons between the latest BMWs and competitors, sharing inside insights into the world of BMW.

Similar Posts