Audi Q9 2027 vs Mercedes-Benz GLS 2027: price, engines, specs and which is better

If you strip away the эмоції, the choice between the Audi Q9 2027 and the Mercedes-Benz GLS 2027 comes down to something simple: the Q9 gives you more tech and pulling power for less money, while the GLS offers a calmer, already proven formula of a large family SUV. One wins on equipment and новизною, the other—on quietness, maturity, and predictability in long-term ownership.

For a buyer, this isn’t a small thing. The Q9 looks stronger at launch, but the first model year always means less real-world data on durability, noise as mileage adds up, and residual value. The GLS is more expensive and weaker in base form, but it carries fewer risks.

What the choice is really about

The Audi Q9 2027 has already been officially revealed and looks very convincing in base configuration: about $87.7–89.1k in the US, 429 hp, 599 N·m, standard adaptive air suspension, rear-axle steering, and a larger cargo area behind the third row. On paper, it’s one of the strongest offers in the class.

The Mercedes-Benz GLS 2027 has been announced officially without final pricing yet, but the market is ориентується on a start around $95k. In GLS 450 form it trails the Q9 in base output, but makes up for it by being not a brand-new model from scratch, but a deeply updated large SUV with well-understood highway manners, better proven evidence of cabin quietness, and more predictable long-term ownership.

Which criteria you should compare by

In this class, the mistake is to look only at horsepower or the screen in the cabin. A practical choice is better made using five criteria.

• Price and what’s included in the base trim. What matters is not only the starting price, but what it already includes: air suspension, AWD, steering assists, cabin configuration.
• Noise and ride smoothness. For a large SUV, this is the key day-to-day difference. Quietness at 120–140 km/h is often more important than 0–100 acceleration.
• Durability and predictability. The GLS has more history across the platform, components, and real-world cabin aging. The Q9 doesn’t have that data set yet.
• Practicality. Here you look not at overall length, but the third row, the volume behind it, ease of access, true body width, and maneuverability in the city.
• Installation and retrofits. If you plan floor mats, a cargo liner, side steps, body kit, or lighting after purchase, it’s easier to find ready-made solutions and straightforward installation for a mature model. For a first model year, the selection is almost always narrower.

Quick comparison of the options (table)

Detailed breakdown of each option

Audi Q9 2027

The Q9 enters the segment aggressively. The base 2.9-liter V6 biturbo with 429 hp and 599 N·m delivers what expensive large SUVs in entry versions often lack: a reserve of torque without having to jump straight to a V8. Add roughly 4.9 s 0–100 km/h, standard air suspension, rear-axle steering, and 547 L of cargo space behind the third row—and it becomes clear why the Q9 looks выгодно as a true “out of the box” purchase.

Practically, the Q9 is strong too: a long wheelbase, 6- or 7-seat configuration, generous cargo capacity, towing up to 3500 kg. But there’s a nuance: this is Audi’s first large flagship SUV of this format. So questions about real-world durability, cabin noise after a few years, small early teething issues, and residual value are still open. If what matters to you isn’t the presentation but a five-year ownership horizon, you need to factor this in honestly.

Another point is retrofitting. With a new model, it always takes some time for the market to catch up with mats, cargo solutions, side steps, body kits, and exterior tuning. That’s not a drawback of the vehicle itself, but it’s a real criterion if you’re used to tailoring a car to your needs right away.

Mercedes-Benz GLS 2027

The GLS 2027 takes a different approach. In base GLS 450 form it’s a 3.0-liter inline-six with mild hybrid assist, 375 hp and 560 N·m. On paper it’s less than the Q9, but it’s sufficient for the class, and the model has long been known as one of the calmest in the segment on the highway. For those who do a lot of long-distance driving, this difference in character matters more than a catalog number.

The GLS’s strong side is maturity. The platform is known, the suspension logic is well understood, the interior and sound insulation have a good reputation, and for those who want more тяги, there’s the GLS 580 with a V8 rated at 530 hp. Yes, the Q9 has a better starting value in price-to-equipment, but the GLS is better suited to people who don’t want to be early testers of a new model.

The weak points are obvious too. The starting price for the 2027 model year hasn’t been confirmed, and it will almost certainly be higher than the Q9. Moving up to higher Mercedes trims quickly makes the purchase very expensive, and large wheels on vehicles like this easily hurt winter comfort and increase tire costs. In terms of practicality the GLS is good, but behind the third row and in cargo volume the Q9 looks more appealing.

Which option is better for different scenarios

If you need a large family SUV with the strongest possible base package, the logic is on the Audi Q9’s side. It’s quicker in the entry version, roomier in the cargo area, and more generous in chassis hardware.

If your main use case is long highway travel, frequent intercity trips, passengers in the second row, and the desire for a quiet, smooth vehicle without small неприятні surprises, the GLS looks more mature.

For the city both are big, but the GLS is slightly shorter, so it feels less bulky. For towing, there’s almost no difference: both pull about 3.5 tons, so what matters isn’t the numbers but confidence in the specific configuration and load.

Use-case scenarios and what to choose (table)

Common mistakes when choosing

1. Looking only at power. In this class, noise, smoothness, and chassis tuning are felt every day, while acceleration differences are occasional.
2. Ignoring the first model year. The Q9 is very strong at launch, but the lack of long-term durability статистики is not a minor detail.
3. Underestimating the size. Both cars are large, and the Q9 is also very wide. If you park in a tight city, you need to measure this against your routes.
4. Overpaying for a V8 without real need. For most family tasks, the base versions are already sufficient; bigger engines are needed when you’re truly buying performance, not just the feeling of reserve.
5. Forgetting about retrofits and installation. If you plan lots of accessories right after purchase, a mature model usually has fewer questions about compatibility and fitting.

When the more expensive option makes sense

Paying extra for the GLS is justified when what matters isn’t the spec-sheet numbers but engineering maturity, cabin quietness, and a clear ownership horizon. This is especially logical if you plan to personalize the car right after purchase: for the Mercedes GLS X167 there are already ready-made solutions for the interior, cargo area, and body, and for deeper exterior upgrades there are GLS facelift kits available.

Paying extra for the Q9 or its higher trims makes sense if you want the strongest possible base right now: more pulling power, a richer chassis, better load capacity, and Audi’s new flagship format. But it’s important to understand that the accessories market for a first model year is still forming, so it’s more practical to keep an eye on the Audi Q9 page if you plan retrofits without rushing.

Conclusion

The Audi Q9 2027 is the stronger rational bet in price-to-power-to-equipment value. The Mercedes-Benz GLS 2027 is the calmer choice for those who put cabin quietness, highway comfort, and long-term predictability first. If you want the most for your starting money—look at the Q9. If you want fewer unknowns and more day-to-day confidence—the GLS looks safer for now.