BMW X3 vs BMW 3 Series
What's the difference?

BMW X3

$88,100 - $131,400

2026 price

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BMW 3 Series

$47,490 - $92,888

2023 price

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Land Rover Discovery Sport

Mercedes-Benz A-Class

Mercedes-Benz C-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQ-Class

Mercedes-Benz Eqb250

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLA-Class

Mercedes-Benz GLA35

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

Mercedes-Benz GLC300

Mercedes-Benz GLE-Class

Mercedes-Benz GLS

Mercedes-Benz GLS-Class

Mini Countryman

Mitsubishi ASX

Mitsubishi Eclipse Cross

Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2026 BMW X3

2023 BMW 3 Series

By Mark Oastler

By Emily Agar

Safety Rating

Engine Type

—

Turbo 4, 2.0L

Fuel Type

—

Premium Unleaded Petrol

Fuel Efficiency

—

6.5L/100km (combined)

Seating

—

Likes

M performance
Rear seat knee/headroom
Versatile family/driver’s car

Driving performance
Well-specified base model
Sexy styling

Dislikes

No ANCAP
Prefers premium fuel
Rear seat shoulder room for three adults

Harder ride might bother some people
Cosy back seat for child seats
Lacklustre lane keeping tech

2026 BMW X3 Summary

BMW has recently launched its fourth-generation (G45) X3 range, which comprises three petrol variants including the entry-level 20 xDrive, mid-grade 30e xDrive PHEV and top-shelf M50 xDrive.

The new trio brings revised powertrains, new exterior and interior styling, increased standard equipment, enhanced technology and an emphasis on the use of sustainable materials.

We recently trialled the five-seater flagship to see if it has the right mix of performance and practicality to maintain the X3’s enduring appeal for Aussie families.

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2023 BMW 3 Series Summary

Back in the day, the 3 Series sedan was often the entry to the brand for first time BMW owners, and for good reason. They offered practical interior space without compromising on engine performance.

And they simply looked good, no boring nanny design elements. Then the 1 Series came along and price points bumped up, so how does the ‘entry’ BMW 320i M Sport live up to its long-standing reputation?

With an updated dashboard that brings the interior and tech up to market and a sharper exterior design, it more than holds its own at the table of luxury sedans, despite hard competition from the likes of the Audi A4, Mercedes-Benz C200 and Jaguar XE.

However, if the Merc is a placid and well-behaved mare… the BMW is the barely-broken-in bronco and it takes a certain kind of ‘rider’ to enjoy what the 320i has to offer.

I’ve been discovering just that this week with my family of three. What did we find out? Read below!

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Deep dive comparison

2026 BMW X3 2023 BMW 3 Series

Verdict

This is a highly competent all-rounder, given that it has the comfort and practicality for urban family duties yet with its revered M breeding can produce a level of performance which, in competent hands, could hold its own at a track day where its capabilities could be safely explored.

Verdict

I thoroughly enjoyed my time in the BMW 320i M Sport. It’s fun to drive and I felt connected to what the car was doing on the road. The harder ride may not appeal to some but I didn’t mind it. The cosy back seat and boot mean it will probably suit a smaller family best and one which doesn’t have to worry about carrying a lot of gear around regularly, but it suited my needs just fine.

I reckon this is a car for those drivers who don’t want to compromise on performance but still have a kid or two. If you’re after the cushioned comfort of a Merc, this won’t appeal but I didn't want to give this one back and happily give it a firm 8/10.

My son liked the sports car looks and enjoyed the amenities in his row. He gives it a 10/10.

BMW X3 vs BMW 3 Series What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW X3 vs BMW 3 Series
What's the difference?