BMW i Series vs Porsche 718
What's the difference?

BMW i Series

$88,900 - $233,400

2026 price

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Porsche 718

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2025 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

2025 Porsche 718

By Emily Agar

By Stephen Ottley

Safety Rating

Electric motor type

Electromagnetically Excited

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Vehicle type

Battery Electric

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Electric range

805 km

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Energy consumption

18.8 kWh/100km

Battery capacity

108.70 kWh

Seating

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Likes

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

Fantastic engine
Sharp driving dynamics
Muscular, purposeful looks

Dislikes

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

Complex roof system
Not as liveable as a regular 718
Might be the last petrol-powered 718

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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2025 Porsche 718 Summary

“If this is to be our end, then I would have them make such an end as to be worthy of remembrance.”

King Theoden may have been talking about the men and women of Rohan in The Lord of the Rings, but he could have just as easily been talking about the team behind the Porsche 718 Boxster.

It’s been nearly 30 years (yes, that long) since the Boxster joined the Porsche line-up as the more affordable sports car alternative to the 911, but now it’s facing a dramatic change that will make it a very different beast.

Porsche has committed to an electric future for the 718 but before it does so, there was one more petrol-powered version to create, this one, the 718 Spyder RS. It stands to be the final 718 to have an internal combustion engine, but could also be the best.

The 718 Spyder RS is the Boxster version of the previously released Cayman-based GT4 RS. So it takes every element of the sports car and turns it up to 11. This is faster, more powerful, lighter and more dynamic than the Boxster has ever been.

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Deep dive comparison

2026 BMW i Series 2025 Porsche 718

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

If this is to be the end of the 718 as we know it, then it is an end to be remembered. Porsche has produced something special in the Spyder RS, a sports car that can compete with the 911 on any stretch of road - which is something so few cars can claim. The focus on performance has driven the entire concept of the car, but all the elements work in harmony, with form and function coming together.

BMW i Series vs Porsche 718 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW i Series vs Porsche 718
What's the difference?