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Genesis G90 vs Lexus GS450h

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

Genesis logo

2026 Genesis G90

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Lexus logo

2018 Lexus GS450h

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Overview

SpecGenesis G903.5TLexus GS450h450h
Selected trim3.5T450h
Body styleSedanSedan
Drivetrainall wheel driverear wheel drive
Fuel typepremium unleaded (recommended)premium unleaded (required)
Transmission8-speed shiftable automaticcontinuously variable-speed automatic
Engine typegashybrid
Model year20262018

Pricing & market

SpecGenesis G903.5TLexus GS450h450h
MSRP$92,700$63,635 (best)
Lowest listing price$24,806 (best)—
Median listing price$105,808 (best)—
Highest listing price$108,598 (best)—
For sale now5 (best)0

Fuel economy & range

SpecGenesis G903.5TLexus GS450h450h
Combined MPG21 MPG31 MPG (best)
City MPG18 MPG29 MPG (best)
Highway MPG26 MPG34 MPG (best)
Fuel tank19.3 gal (best)17.4 gal

Performance

SpecGenesis G903.5TLexus GS450h450h
Horsepower375 hp (best)338 hp
Torque391 lb-ft (best)—
Engine size3.5 L3.5 L
CylindersV6V6

Size & capability

SpecGenesis G903.5TLexus GS450h450h
Seating5 seats5 seats
Doors44
Cargo volume12 cu ft13.2 cu ft (best)
Payload—1,013 lbs (best)
Curb weight4,872 lbs4,112 lbs (best)
Ground clearance5.8 in (best)5.1 in
Wheelbase125.2 in (best)112.2 in
Length207.7 in (best)192.1 in
Width76 in (best)72.4 in
Height58.7 in (best)57.3 in

Safety & recalls

SpecGenesis G903.5TLexus GS450h450h
NHTSA overallNot Rated—
Frontal crash (driver)Not Rated—
Frontal crash (passenger)Not Rated—
Side crash (driver)Not Rated—
Side crash (passenger)Not Rated—
Side poleNot Rated—
RolloverNot Rated—
Open recalls (YMM scope)2None reported (best)

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimGenesis G90Lexus GS450h
1

3.5T

$92,700 MSRP(Currently comparing)

450h

$63,635 MSRP(Currently comparing)

2

3.5T E-Supercharger

$103,000 MSRP

450h F SPORT

$68,680 MSRP

3

3.5T E-Supercharger Prestige Black

$105,750 MSRP

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Live inventory

Genesis G90 vs Lexus GS450h FAQ

Which is better: 2026 Genesis G90 or 2018 Lexus GS450h?
It depends on priorities. OpenDealer compares 2026 Genesis G90 vs 2018 Lexus GS450h on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2026 Genesis G90 or 2018 Lexus GS450h?
Based on starting MSRP, the 2018 Lexus GS450h starts lower at $63,635. Live Genesis G90 listings start at $24,806.
Which has better startingMsrp: 2026 Genesis G90 or 2018 Lexus GS450h?
The 2018 Lexus GS450h leads on startingMsrp in this comparison (63,635).
Which has better combinedMpg: 2026 Genesis G90 or 2018 Lexus GS450h?
The 2018 Lexus GS450h leads on combinedMpg in this comparison (31).
Which has better horsepower: 2026 Genesis G90 or 2018 Lexus GS450h?
The 2026 Genesis G90 leads on horsepower in this comparison (409).
How do the NHTSA safety ratings compare for 2026 Genesis G90 vs 2018 Lexus GS450h?
NHTSA overall crash-test ratings in this comparison: Genesis G90 (Not Rated/5 NHTSA overall).