Inside the 3 Series vs A4

Since comfort is a priority of yours, we first wanted to look at what you'll have inside each of these luxury cars. What we found is that between the 3 Series vs. A4, it is the BMW sedan that provides more of a first-class driving experience.

It starts with the space you'll have when seated behind the steering wheel. In the front row of the BMW 3 Series, there is 38.7 inches of headroom and 42 inches of legroom. That is more than the Audi A4, which has just 37.3 inches of headroom and 41.3 inches of legroom.

Along with that, you can use the standard premium features like the 10-way power front sport seats, automatic 3-zone climate control system, and 2-way power glass moonroof to enhance your personal comfort inside the 2021 BMW 3 Series. With the Audi A4, you won't get that same level of standard luxury.

Safety Technology

Both of these models also have some of the most advanced tech you'll find in any car, including their various driver-assistive features, which help you stay safe in a variety of ways.

They each have standard and available features that can help in many situations, from keeping you alert of any cars in your path ahead to guiding you into open parking spots. The 2021 Audi A4 even has an available feature that can help you drive safely in traffic by automatically maintaining a preset following distance.

The 2021 BMW 3 Series takes things a step further with its available Active Driving Assistant Pro. This can keep you not only keep your BMW a safe distance from the car in front of you but also can control the steering to keep you centered in the lane. It even can steer you away from any cars if you need to quickly change directions to avoid a collision. With this, you'll have an even more relaxed and confident commute each day.

Read through our other BMW vs. Audi comparisons and see what else these two brands offer!

BMW 3 Series vs Audi A4: Performance Specs

While the 2021 Audi A4 has two powertrain options, neither of them can quite reach the heights of power or efficiency that you can have with the 2021 3 Series. That is because only the BMW 3 Series offers a plug-in hybrid that lets you utilize electric power to save on fuel.

Also, the Audi A4 can at most generate 261 horsepower and 273 lb-ft of torque. The BMW 3 Series, on the other hand, can produce a maximum of 382 horsepower and 368 lb-ft of torque, which will give you even faster acceleration.

On top of that, the BMW 3 Series provides exceptional handling, thanks to its fine-tuned suspension system and low center of gravity.

See how this BMW model matches up to another high-end sedan in our BMW 3 Series vs. Lexus ES comparisons!