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

BMW i Series

$88,900 - $233,400

2026 price

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BMW 3 Series

$47,490 - $92,888

2023 price

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Aston Martin Vanquish

Lamborghini Aventador

Mercedes-Benz A-Class

Mercedes-Benz A35

Mercedes-Benz A45

Mercedes-Benz AMG GT

Mercedes-Benz C-Class

Mercedes-Benz C43

Mercedes-Benz C63

Mercedes-Benz CLA-Class

Mercedes-Benz CLS-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQ-Class

Mercedes-Benz EQS

Mercedes-Benz S-Class

Summary

2026 BMW i Series

2023 BMW 3 Series

By Emily Agar

Safety Rating

Electric motor type

Electromagnetically Excited

Turbo 4, 2.0L

Vehicle type

Battery Electric

Premium Unleaded Petrol

Electric range

805 km

6.5L/100km (combined)

Energy consumption

18.8 kWh/100km

Battery capacity

108.70 kWh

Seating

Likes

Great driving range
Spacious cabin for the whole family
Excellent real-world efficiency

Driving performance
Well-specified base model
Sexy styling

Dislikes

Optioned wheels hurt range
Fussy ride on rough roads
Missing features for flagship grade

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

2026 BMW i Series Summary

We’re in the new BMW iX3, the first production model to arrive on BMW’s Neue Klasse (new class) EV architecture. We’re testing the flagship 50 xDrive, and it begs the question: has BMW actually managed to make its next generation of EVs feel like a proper Bimmer? Buyers expect a lot from that badge when it comes to ride and handling, so does this electric SUV actually deliver?

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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 i Series 2023 BMW 3 Series

Verdict

The BMW iX3 50 xDrive is a seriously quick electric SUV that earns points for its family practicality, while its impressive range could go a long way towards easing range anxiety. The ride isn’t always as settled as I’d like, but for the most part, this is a well-executed premium EV.

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

Summary

Deep dive comparison

Verdict

Verdict

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