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2017 INFINITI QX80 vs. 2017 MERCEDES-BENZ GLS450 | Competition INFINITI of Smithtown


The 2017 Mercedes Benz GLS450 has transitioned from its GL-Class and as such has been completely revamped. It seats seven passengers and is a crossover SUV with an interior so lavish that anyone who drives it, even briefly, will feel pampered. The 2017 INFINITI QX80 is a classical SUV which was designed around the platform of a truck which is full sized, but is so luxurious that it has been compared to entering a Lear jet. So which one offers the best value for your money? Keep reading to find out.

Design & Style

When it comes to space, the INFINITI QX80 has sufficient room to seat seven people, but also offers the option of seating an eighth person, which gives it a slight edge over the Mercedes Benz GLS450. The interior of the QX80 is both fancy and aggressive, and while its amenities are largely the same as the GLS450, you can get it for a price that is lower.

Technology & Safety

The GLS450 is a descendant of the legendary GL Class, and as such, it has a very attractive interior combined with lots of safety features. It has passed every safety test with flying colors, and comes equipped with a state of the art steering wheel and touch pad that gives you greater control of the vehicle overall. The INFINITI QX80 has also passed multiple safety tests and has many of the same features as the Mercedes, so in this area the two are evenly matched.


This is where the QX80 completely dominates over the Mercedes Benz GLS450. It comes equipped with a V8 5.6 liter engine which gives a maximum of 400 horse power. Compare this to the GLS 450, which is restricted to a V6 3 liter engine which provides a paltry 362 horse power. While it is true that the Benz may have a slight edge in the luxury interior department, this comes at the cost of it performing poorly in comparison to its INFINITI counterpart. The interior of the QX80 is exceptionally comfortable in its own right, and when combined with its extremely powerful engine and ability to tow over eight thousand pounds, it is a true workhorse and the vehicle of choice for anyone that is looking for performance.

The Bottom Line

While both of these vehicles are outstanding, most people will only buy one of them. It is the QX80 that we recommend, because it offers the perfect combination of style, a luxurious interior, and performance for a price that is slightly lower than the GLS450. While the Mercedes Benz brings lots to the table, it simply isn’t enough to match the power and price of the INFINITI. The GLS450 does have a great fuel economy, no doubt, but those who demand maximum performance for the money they spend are going to choose a vehicle with a V8 engine over a V6 any day.

Ready to Schedule an INFINITI QX80 Test Drive Today?

Nothing beats getting behind the wheel of a vehicle to see for yourself how well it performs. Contact our dealership in St. James New York and schedule an appointment today!

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(631) 361-4636

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587 Middle Country Rd • St James, NY 11780

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Competition INFINITI of Smithtown

587 Middle Country Rd St James, NY

Phone: (631) 361-4636


Phone: (631) 361-3376

587 Middle Country Rd St James, NY


Phone: (631) 361-4636

587 Middle Country Rd St James, NY


Phone: (631) 361-3328

587 Middle Country Rd St James, NY
40.8608728 -73.157779
Competition INFINITI of Smithtown 40.8608728, -73.157779.