You deserve the best. The very best of the best. When it comes to the apex of luxury sedans, two kings reign supreme: the 2021 BMW 3 Series and the Lexus IS. Each has an incredible performance, comfortable interiors, and protective safety features, but which is best for you?

Our team at BMW of Rochester Hills has put together this quick comparison to help our friends in the Rochester Hills, Oakland Township, and Sterling Heights, Michigan, areas choose the appropriate luxury vehicle for them.

2021 BMW 3 Series vs. Lexus IS: Power Under the Hood

Luxury and power go hand in hand these days, and the BMW 3 Series and Lexus IS are no exception.

The BMW has two gas engines available and the Lexus has three, so you're spoiled no matter which you choose.





EPA-Estimated MPG

BMW 3 Series

2.0L BMW TwinPower Turbo inline 4-cylinder


294 lb-ft

26 city/36 highway MPG1

3.0L BMW M TwinPower Turbo inline 6-cylinder


368 lb-ft

23 city/32 highway MPG1

Lexus IS

2.0L in-line 4-cylinder


258 lb-ft

21 city/31 highway MPG

3.5L V6


236 lb-ft

19 city/26 highway MPG

3.5L Sport V6


280 lb-ft

20 city/28 highway MPG

If you're concerned about your carbon footprint, the BMW 3 Series also comes with an available plug-in hybrid engine-the 2.0L BMW TwinPower Turbo inline 4-cylinder with integrated electric motor. This environmentally friendly powertrain puts out 288 combined horsepower and 310 lb-ft of combined torque, which outperforms two of the Lexus IS combustion engines.

Even though the BMW 3 Series and the Lexus IS both have the same number of engine options, the BMW engines are more powerful overall. This means that you may notice faster acceleration when zooming along the interstate.

Pair that with the better fuel economy of the BMW 3 Series and you'll be able to go for miles without stopping at the pump as often as with the Lexus IS.

2021 BMW Series 3 vs. Lexus IS: Luxurious Interior

It isn't just power that makes a good sedan. You want a comfortable interior for the miles and miles you drive to and from work as well.

The Lexus IS has an available 10-way power-adjustable driver's seat, including lumbar support, which is an impressive level of customizable comfort.

The BMW 3 Series, however, has an available 14-way power driver's seat, including 4-way power lumbar support. With this kind of customizable comfort, you may notice less driver fatigue after even the longest drives.

When you need to bring things to the office, such as a spare monitor or boxes of files, the Lexus IS has almost 11 cubic feet of cargo space. If you need to bring along even more, the BMW 3 Series has 13 cubic feet of storage space to pack all your essentials.

2021 BMW Series 3 vs. Lexus IS: Impressive Safety Features

Safety is of the utmost importance when it comes to choosing a new car. Luckily, both the 2021 BMW 3 Series and the Lexus IS have comprehensive safety suites.

These suites both have a variant of the following features:

  • Active Lane Keeping Assistant
  • Active Blind Spot Detection
  • Frontal Collision Warning
  • Automatic high beams
  • Active Cruise Control with Stop & Go

An ounce of prevention is worth a pound of cure. The BMW 3 Series has plenty of features for collision prevention.

If the unimaginable should happen, this sedan has a solution: the BMW 3 Series' Active Protection System. This system detects imminent collisions and prepares by automatically tightening the safety belts, closing the windows, and activating post-accident braking.

This BMW system is poised to protect you no matter what the situation and can be an indispensable asset to your new road companion. Though the Lexus IS has all the preventative measures, without this post-collision feature you may have more to think about should the unthinkable occur.

2021 BMW 3 Series vs. Lexus IS: Test Drive Both Today

When you're ready to upgrade your ride to the lap of luxury, you won't go wrong with either the 2021 BMW 3 Series or the Lexus IS.

However, if you want extra amenities, power, and safety, stop into BMW of Rochester Hills and give the 3 Series a test drive.

We're ready to help our friends in the Rochester Hills, Oakland Township, and Sterling Heights, MI, areas find the best luxury sedan for their unique lifestyles.

Contact us-your new BMW is waiting.

1 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.


Make an Inquiry


BMW of Rochester Hills

45550 Dequindre Rd
Directions Shelby Township, MI 48317

  • Sales: (888) 294-1015
  • Service: (248) 997-7700
  • Parts: (248) 997-7700


  • Monday 9:00AM-8:00PM
  • Tuesday 9:00AM-6:00PM
  • Wednesday 9:00AM-6:00PM
  • Thursday 9:00AM-8:00PM
  • Friday 9:00AM-6:00PM
  • Saturday 10:00AM-4:00PM
  • Sunday Closed