Mercedes-Benz GLC-Class vs Lexus IS
What's the difference?

Mercedes-Benz GLC-Class

$63,419 - $183,541

2025 price

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Lexus IS

$39,990 - $62,990

2021 price

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Land Rover Discovery Sport

Mercedes-Benz A-Class

Mercedes-Benz C-Class

Mercedes-Benz C200

Mercedes-Benz C300

Mercedes-Benz C350 E

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQ-Class

Mercedes-Benz Eqb250

Mercedes-Benz Esprinter

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLA-Class

Mercedes-Benz GLA35

Mercedes-Benz GLB-Class

Mercedes-Benz GLC300

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Mercedes-Benz GLS

Mercedes-Benz GLS-Class

Mini Countryman

Mitsubishi ASX

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Mitsubishi Outlander

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Summary

2025 Mercedes-Benz GLC-Class

2021 Lexus IS

By Stephen Ottley

By Tom White

Safety Rating

Engine Type

Turbo 4, 2.0L

Inline 4, 2.5L

Fuel Type

Premium Unleaded/Electric

Fuel Efficiency

7.3L/100km (combined)

4.9L/100km (combined)

Seating

Likes

More power and torque
More fuel efficient
Stylish cabin

Sleek and efficient hybrid drive
Graceful ride
Spec improvements

Dislikes

Misses V8 soundtrack
Big price rise over previous model
Smaller boot, no spare tyre

Slow
Busy interior design
Fiddly and over-complicated software

2025 Mercedes-Benz GLC-Class Summary

Let’s make one thing clear from the very beginning - this new Mercedes-AMG GLC63 S E Performance is technically superior to the model it replaces. Whether it’s actually better or not, is the real question at the heart of the matter.

Why? Because, like the C63 sedan stablemate, AMG has opted to replace the previous model’s 4.0-litre twin-turbo V8 engine with a new 2.0-litre four-cylinder hybrid powertrain. It was a move brought about in part because of increasingly stricter emissions standards in Europe, but also ties-in with the German firm’s success in modern Formula One racing.

While the new hybrid system offers more power, more torque and better fuel economy, as the lukewarm response to the C63 has demonstrated, the hard reality for AMG is that its buyers associate it with V8 and even V12 engines. That emotional pull is hard to replace with logic, even if the new model offers technical superiority.

But how does the new powertrain suit the GLC63 - is it just technically better or is it holistically improved?

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2021 Lexus IS Summary

One question frequently discussed in the skunkworks of the CarsGuide office is: What exactly does Lexus stand for?

When the brand debuted its original export-market IS sedan in 1999 the messaging was more or less clear: Toyota’s premium sub-brand was here to be a Japanese BMW.

The brand even employed Nobuaki Katayama – chief engineer on the iconic Corolla AE86 program – to again take the reins of its small rear-wheel drive sedan program.

As the years went on though, Lexus changed. Fundamentally geared toward the US market, the second-generation (wild IS F aside) became a bit more sedate and softer around the edges, while the third generation strayed even further from the sedan’s performance-inspired roots, leaning into a plush interior, hybrid drive, and even CVT transmissions.

This brings us to today’s Lexus IS. Essentially a heavy facelift of the third generation (which arrived back in 2013), the brand has “reimagined” its core sedan with a tweaked design and updated technology for 2021.

Is it enough to keep it relevant against its ever-present European rivals and the newly arrived threat from Hyundai’s Genesis G70? I took a signature IS300h hybrid for a week to find out.

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Deep dive comparison

2025 Mercedes-Benz GLC-Class 2021 Lexus IS

Verdict

Like I said right from the start, this new, hybrid version of the AMG GLC63 is technically superior to the model it replaces in every meaningful way. It is faster, more powerful and more fuel efficient and therefore a better performance SUV than the model it replaces.

Is it a better model than the one it replaces? Ultimately that will come down to how much stock you put into the soundtrack and your feelings on an AMG not powered by a V8 engine.

Because if you can see past that, then the AMG GLC63 is an absolutely fantastic performance SUV. Not only does the new powertrain make it faster in a straight line, but the chassis is very well-balanced, making for an engaging driving experience.

For those who can look past the smaller engine they will be rewarded with an incredibly fast and rewarding-to-drive member of the AMG family.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

Verdict

Smooth, cosy, quiet, the IS looks and feels better than ever, but without a doubt this hybrid version is a car best suited to cruising the dense metropolis of Chiba at midnight more than it is carving up a bunch of S-bends in the Australian countryside on the weekend.

While that might still limit its appeal for fans of German sports luxury sedans and place it further from the original IS’s ambitions, it does offer an intriguing efficiency and luxury focused alternative, without the compromises brought by rivals with more sporting intent. In a way then, the IS 300h perhaps inadvertently best embodies what Lexus is as a brand.

Mercedes-Benz GLC-Class vs Lexus IS What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Mercedes-Benz GLC-Class vs Lexus IS
What's the difference?