2025 BMW 3 Series Specs & Performance Overview

Long considered the entry point into the world of sport-performance vehicles, the BMW 3 Series continues and upholds this legacy with its latest model-year offering. So in this overview of the 2025 BMW 3 Series specs and performance, we at BMW of Loveland will provide you with a brief primer on which BMW 3 Series engine options are available with which trims, what the BMW 3 Series mpg rating is, and more. 

2025 BMW 3 Series Engine Specs

The BMW 3 Series engine options are trim-specific, and given the performance-forward nature of the 3 Series, it is not too far of a stretch to say the engine or powertrain is what defines the trim. Here are the basic engine specs for each, along with performance specifications, such as the BMW 3 Series 0-60 mph times and top speeds. Check them out, and consider how invigorating and thrilling it would be to drive an M3 in and around Denver: 

2.0L BMW TwinPower Turbo inline 4-cylinder 

Standard engine on: 330i Sedan, 330i xDrive Sedan

• Horsepower: 255 hp @ 4,700-6,500 rpm
• Torque: 295 lb-ft of torque @ 1,600-4,500 rpm
• Top Speed: 130 mph (155 mph w/ performance tires)
• Acceleration (0-60 mph time; 330i / 330i xDrive): 5.6 seconds / 5.4 seconds

3.0L BMW M TwinPower Turbo inline 6-cylinder

Standard engine on: M340i Sedan, M340i xDrive Sedan

• Horsepower: 386 hp @ 5,200-6,250 rpm
• Torque: 398 lb-ft of torque @ 1,900-4,800 rpm
• Top Speed: 130 mph (155 mph w/ performance tires)
• Acceleration (0-60 mph time; M340i / M340i xDrive): 4.4 seconds / 4.1 seconds 

3.0L BMW M TwinPower Turbo inline 6-cylinder

Standard engine on: M3 Sedan, M3 Competition Sedan, M3 Competition xDrive Sedan 

• Horsepower (M3 / M3 Competition / M3 Competition xDrive): 473 hp @ 6,250 rpm / 503 hp @ 6,250 rpm / 523 hp @ 6,250 rpm
• Torque (M3 / M3 Competition / M3 Competition xDrive): 406 lb-ft of torque @ 2,650-6,130 rpm / 479 lb-ft of torque @ 2,750-5,500 rpm / 479 lb-ft of torque @ 2,750-5,730 rpm
• Top Speed: 155 mph (180 mph w/ performance tires)
• Acceleration (0-60 mph time; M3 / M3 Competition / M3 Competition xDrive): 4.1 seconds / 3.8 seconds / 3.4 seconds

2025 BMW 3 Series MPG-Rating

Having considered engine specs and performance specs like the BMW 3 Series 0-60 mph acceleration times, let’s slightly switch focus to see how fuel-efficient the 2025 3 Series is. Unfortunately, at the time of writing, the only BMW 3 Series mpg ratings available are combined figures, so we will have to wait until more granular figures are available from the OEM or EPA. 

That said, it is evident that the 2025 3 Series is surprisingly fuel-efficient despite its high-performance standards, with the entry-level 330i managing a combined 35 mpg rating across city and highway driving:

• 330i Sedan: 35 mpg*
• 330i xDrive Sedan: 34 mpg*
• M340i Sedan: 33 mpg*
• M340i xDrive Sedan: 33 mpg*
• M3: 23 mpg*
• M3 Competition Sedan: 23 mpg*
• M3 Competition xDrive Sedan: 23 mpg*

As you can see, the 2025 BMW 3 Series is fuel-efficient enough to act as a daily Boulder commuter. If you want a 3 Series for this purpose, the M340i xDrive fits the bill quite nicely, as it strikes an excellent balance between the pure performance of an M3 and the practical fuel efficiency of the entry-level 330i. Of course, you will have to test-drive one or either to be sure, so consider contacting our dealership. One of our associates would be glad to assist you.

Explore the 2025 BMW 3 Series with BMW of Loveland

We hope you found this overview of the 2025 BMW 3 Series specs and performance useful. If you want to experience the BMW 3 Series 0-60 mph acceleration time and sumptuous interior or want to know about new 2025 updates, drive over from Fort Collins and visit our dealership in Loveland. Our associates can walk you through the financing process or introduce you to our new vehicle specials, so we hope to see you soon. 

*Preliminary EPA-estimated figures are for comparison purposes only. Your actual mileage will vary, depending on speed, driving habits, trip length and driving conditions; actual mileage may be lower. Note for MPGe: All data are provisional and subject to official confirmation. The provisional power consumption figures have been calculated based on the ECE test cycle.