Is the 2021 Genesis G90 a good car?

Yes — you rate it 5/5, and the expert rating is 8.67/10. The model scores 10/10 across Cost effectiveness and Safety.

Owners praise its luxury and value for money, along with the powerful performance, smooth ride, and comfortable interior. On the expert side, the main trade-offs are that it cannot keep up with the competition even at a lower price and has poor handling.

With 34.0% of listings marked as good or great deals, the G90 looks especially appealing if you want flagship luxury without paying flagship-brand pricing.

Is the 2021 Genesis G90 reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction. The owner feedback also points to a car that feels reliable, dependable, and trouble-free, with a strong sense that it’s a vehicle you can count on over time.

The expert review reinforces that impression by describing the G90 as an uncompromising luxury car with a concierge service that helps simplify ownership. The first scheduled maintenance visit is on the house.

For used buyers, the main long-term ownership risk is less about day-to-day satisfaction and more about making sure the car’s premium features and prior use history have been well cared for.

What should I look for when buying a used 2021 Genesis G90?

At 68% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a thorough pre-purchase inspection, especially if you’re considering a higher-mileage example or one with multiple owners. Focus on condition consistency across the exterior, interior, and electronics, since this is a luxury sedan where repair costs can add up quickly if prior damage was poorly handled.

Key things to evaluate:

• Trim level: The G90 comes with a rich standard equipment set, including heated and cooled seats, a 12.3-inch display, digital instrumentation, rear-seat recliners with footrests, and rear-seat controls. There are no options beyond color, powertrain, and wheels, so the main trim-level difference is really the engine and drivetrain choice rather than major feature gaps.
• Powertrain: You can choose a 3.3-liter twin-turbo V6 with 365 horsepower and 376 pound-feet of torque, or a 5.0-liter V8 with 420 hp and 383 lb-ft. Both use an eight-speed automatic, and AWD adds $2,500.
• Safety package: Every version includes forward-collision warning, blind-spot monitoring, driver-attention warning, lane keeping assist, rear cross-traffic alert, and adaptive cruise control. The suite is standard across engines and drivetrains.
• Infotainment: The G90 uses a 12.3-inch HD screen, Apple CarPlay, Android Auto, and a Lexicon 17-speaker audio system. The interface is controlled by a console-mounted knob rather than a touchscreen, and phone integration is wired rather than wireless.
• Fuel efficiency: The V6 returns 17 mpg city, 25 mpg highway, and 20 mpg combined with either RWD or AWD. The V8 gets 16 mpg city, 24 mpg highway, and 19 mpg combined with RWD, or 15 mpg city, 23 mpg highway, and 18 mpg combined with AWD.

Which 2021 Genesis G90 trim should I buy?

The 2021 Genesis G90 is offered in 4 trim levels: 3.3-liter twin-turbo V6 with rear-wheel drive, 3.3-liter twin-turbo V6 with all-wheel drive, 5.0-liter V8 with rear-wheel drive, 5.0-liter V8 with all-wheel drive.

Here's the short version:

• Base trim: The V6 RWD version gives you the core G90 experience at the lowest price, but you still get the full luxury cabin, standard safety suite, and rear-seat amenities. It lacks the extra traction of AWD and the added power of the V8.
• Sweet-spot trim: The V6 AWD version is the best balance for most buyers because it keeps the stronger value story while adding all-weather traction for $2,500 more.
• Premium/top trim: The V8 AWD version is the most powerful and most expensive choice, but it also carries the lowest fuel economy and is harder to justify unless you specifically want the V8.
• Off-road trim: None of the G90 driveline choices are aimed at off-road use, and the car’s size and luxury focus make it a poor fit for rough daily-driver duty.

Every version gets the same standard safety package, so your decision mostly comes down to power, traction, and fuel economy rather than equipment gaps.

Is now a good time to buy a used 2021 Genesis G90?

This looks like a moderate buyer’s market, with enough inventory to shop carefully and enough deal activity to make comparison shopping worthwhile.

• Deal availability: 34.0% of listings are priced as good or great deals.
• Inventory: There are 50 listings available.
• Clean inventory: 68.0% of listings are accident-free.

Is the 2021 Genesis G90 safe?

The 2021 Genesis G90 earns an IIHS Top Safety Pick+ rating.

It earns a 10/10 safety score from our experts.

Every version includes forward-collision warning, blind-spot monitoring, driver-attention warning, lane keeping assist, rear cross-traffic alert, and adaptive cruise control. Those features are standard regardless of engine or drivetrain, so you do not need to move up for the core safety suite.

Should I buy a 2021 Genesis G90 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 34.0% of listings are priced as good or great deals.
• At 68% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2021 stands out for its standard Top Safety Pick+ rating and full suite of driver-assistance features.

Consider the 2020 if:

• The 2020 Genesis G90 is a spacious luxury sedan that delivers strong value and a satisfying drive.

The bottom line: The 2021 is the better pick if you want the strongest mix of value, safety, and standard equipment in a full-size luxury sedan. If you’re shopping primarily on price and can accept an older model year, the 2020 may still make sense as a lower-cost alternative with similar core appeal.

These recommendations are based on CarGurus' proprietary market data from August 21, 2026, CarGurus experts' opinions, and generative AI.