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Genesis G90 vs Mercedes-Benz S-Class: Which to Buy

Carummah Editorial
Last updated: November 4, 2026
Genesis G90 vs Mercedes-Benz S-Class

Genesis G90 starts at $92,000; the Mercedes-Benz S-Class starts at $118,900. Before taxes and fees, the Genesis G90 is $26,800 less. Mercedes-Benz S-Class makes more power, 442 hp against 375 hp.

Frequently Asked Questions

Is the Genesis G90 or the Mercedes-Benz S-Class cheaper?

The Genesis G90 costs less to start. Genesis G90: $92,000 plus $1,250 destination. Mercedes-Benz S-Class: $118,900 plus $1,150 destination. Taxes, title and registration are on top of both.

Which gets better fuel economy, the Genesis G90 or the Mercedes-Benz S-Class?

The Genesis G90 is rated 18/26 city/hwy, and the Mercedes-Benz S-Class is rated 20/28 city/hwy. Real-world results depend on how and where you drive.

How many people does each seat?

The Genesis G90 seats 5. The Mercedes-Benz S-Class seats 5.

What are the trade-offs between the two?

Genesis G90: Stunning, distinctive exterior design, though lower brand recognition compared to German rivals. Mercedes-Benz S-Class: Unmatched interior material quality and craftsmanship, though high cost of entry and ownership compared to some rivals.

Genesis G90 is best for

Genesis G90 is the better fit for full-size sedan buyers who want to carry a family. Its standout: stunning, distinctive exterior design.

Mercedes-Benz S-Class is best for

Mercedes-Benz S-Class is the better fit for full-size luxury sedan buyers who drive in snow and rain. Its standout: unmatched interior material quality and craftsmanship.

Spec-by-Spec Comparison

AttributeGenesis G90Mercedes-Benz S-Class
Starting MSRP$92,000$118,900
MSRP + destination$93,250$120,050
Fuel economy / range18/26 city/hwy20/28 city/hwy
Horsepower375 hp442 hp
Seating55
Body typeFull-Size SedanFull-Size Luxury Sedan
Powertrains3.5T V6, 3.5T V6 E-Supercharger3.0L I6 Turbo with Mild Hybrid, 4.0L V8 Biturbo with Mild Hybrid, S 580e PHEV

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