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The G37 and the G37X are among Infiniti’s most popular mid-size cars. But which is the better car? This G37 vs. G37X comparison guide has the answers.

Between the G37 and the G37X, which is the better car? Which car offers better value for money? Should you get the G37 or the G37X?

The G37 and the G37X are both great luxury midsize cars. Both come with powerful engines, a luxurious interior, plenty of features, and a modern infotainment system. However, the G37 appears to outperform the G37 in key areas like performance and safety.

In this guide, we will take a closer look at how the Infiniti G37 and the G37X compare. We will compare key areas like performance, fuel economy, interior and features, safety, and price. So, if you are confused as to which one you should go for, then this article will guide you and help you make an informed decision.

Our experienced team of editors, writers, auto experts, researchers and analysts has been reviewing and comparing cars, trucks, crossovers, vans, SUVs and other types of vehicles for more than 10 years. Therefore, you can always trust us as your go-to source for credible, up-to-date, and reliable auto-related information.

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Launched in 1989, Infiniti is a sub-brand of Nissan, which mainly specializes in luxury vehicles. Unlike other car manufacturers, Infiniti’s main focus is producing coupes, sedans, and SUVs. And the Infiniti G37 and the Infiniti G37X are among their most popular cars.

Besides their name, these two cars are similar in various aspects. And, choosing one over the other can prove to be an overwhelming process, especially if you are not car savvy. Fortunately, we’ve done the heavy lifting for you.

In this guide, we will take a closer look at each of these two cars as well as how they compare. So, if you are confused as to which one you should choose between two, then we’ve made things easier for you.

About the G37

The Infiniti G37 is a midsize luxury car, available in three trims. It’s available in three body styles. These are a two-door convertible, a two-door coupe as well as a four-door sedan. Each model comes fitted with a 3.7-liter, V6 engine. A seven-speed automatic transmission comes standard across all the trims while a six-speed manual is available.

About the G37X

The G37X is a standalone trim of Infiniti’s G-series sedan lineup. It comes with all the bells and whistles that you can find in almost any other Infiniti midsize car. Besides being a powerful vehicle, it also packs lots of features and comforts.


The Infiniti G37 comes fitted with a V6 engine, which has an output of 328 hp. The engine is then mated to a seven-speed automatic transmission. Infiniti has also outfitted this vehicle with rear-wheel drive, which comes standard. Based on available reviews, the G37 handles well. And while its ride is a bit firm, its suspension system absorbs bumps, potholes and uneven surfaces comfortably.

The G37 takes around 5.4 seconds to accelerate from 0 to 60 mph while taking around 13.8 seconds to cross the quarter mile. According to drivers who have used this vehicle, you can hit speeds of up to 170 mph with the G37.

The G37X is outfitted with a robust 3.7-liter, V6 engine. This engine has an output of approximately 328 hp. Similar to the G37, the engine of the G37X has also been mated to a seven-speed automatic transmission.

The G37X takes just over six seconds to accelerate from 0 to 60mph while taking around 14 seconds to cover the quarter mile. As for its top speeds, it clocks out at approximately 142 mph.

When you compare the two, you can see that the G37 is faster than the G37X. So, if speed is what you are after, then you should go with the G37.

Fuel Economy

The G37 has an estimated fuel economy of 26mpg on the highway and 19mpg in the city. Its combined fuel economy is approximately 22.5mpg. As you can see, it comes with quite a thirsty engine. It’s also worth mentioning that its fuel economy is below average in its class.

As for the G37X, its engine is not as thirsty as that of the G37. It returns decent fuel economy ratings. According to the EPA, the G37X has an estimated fuel economy of 25 mpg on the highway and 18mpg in the city. Its average fuel economy is approximately 20mpg.

In terms of fuel economy, the G37X delivers a better return than the G37. So, if fuel economy is a priority for you, then you should go for the G37X.

Interior and Features

Similar to other luxury cars, the G37 comes with leather upholstery. Infiniti has also furnished it with heated front seats, which deliver a comfortable experience during long trips. The materials used inside the cabin are of top-notch quality.

However, according to reviews, its rear seats are not as spacious as you would want, especially for the G37s that come with two doors. Also, the center seat is equally uncomfortable.

Notable interior features include dual-zone automatic climate control, leather-appointed seats, power driver's seat, leather-wrapped steering wheel, eight-way power front passenger’s seat, Shodo aluminum interior trim, power windows, heated mirrors, illuminated entry system and remote power locks, just to name a few.

As for the infotainment unit, you will get a seven-inch touchscreen, featuring Bluetooth phone and audio connectivity, Sirius XM satellite radio, a six-speaker audio system and USB ports. Other features include speed-sensitive volume control and a radio data system.

Moving on to the G37X, it’s interior is equally well appointed. Its interior features high-quality materials and top-notch build quality. As much as its interior build and quality may not be on the same level as German cars, it manages to give a feeling of luxury, once you step inside the car.

The front of the vehicle is spacious. Also, the rear seats are equally spacious, with plenty of legroom. Notable interior features include eight-way power front seats, leather-wrapped, tilt and telescopic steering wheel, heated front bucket seats, leather shift knob with a metallic finish, intelligent key with push button ignition and dual-zone automatic climate control.

The G37X’s infotainment system is equally modern. Also, it’s user-friendly and quite intuitive. Some of the standout features in this infotainment system include a six-speaker audio system, seven-inch display, inbuilt navigation system, Sirius XM satellite radio, and Bluetooth phone system, among others.

Exterior and Styling

The G37 combines a classy look with aspects of sportiness throughout its exterior. At the front is a horizontal-lined chrome grille. At the center of this grille is Infiniti’s logo. And with the headlights, everything appears well-placed and harmonious. It’s simple yet classy. As for the side profile, there are 17-inch or 18-inch wheels, depending on the trim you choose, which enhanced the overall sportiness of this car.

Some of the major exterior features of the G37 include high-intensity discharge xenon headlights, front fog lights, heated outside mirrors, aluminum hood, speed-sensing front windshield wipers, dual chrome exhaust finishers and rear-window defrost, featuring a timer and indicator light.

It also comes with automatic on and off headlights. Unlike conventional headlights, these headlights will activate themselves automatically once the vehicle is one whenever it’s dark. With these headlights, you don’t need to press any button to activate them.

The G37X also sports an equally attractive exterior. It features swept-back headlights, a slim front grille with the logo at the center, as well as multi-spoke alloy wheels. These features work together to give this car a luxurious, premium touch.

Notable exterior highlights of the G37X include high-intensity discharge xenon lights, integrated front fog lights, automatic on and off headlights, trunk chrome finisher, folding power heated mirrors and 17-inch aluminum wheels.

In terms of exterior design and styling, the G37 appears to have an edge over the G37. However, the issue of which one is more stylish than the other is subjective. Some people will tell you the G37 is more stylish than the G37X while others will say the opposite. So, it all comes down to the style you prefer.


Safety is an important factor to consider when purchasing a car. And this begs the question, is the G37 a safe vehicle? Without a doubt, the G37 is a safe car. It earns decent scores in various safety ratings.

Also, it comes packed with numerous safety features, including an anti-lock braking system with brake assist, stability and traction control, front-seat airbags, and curtain-side supplemental airbags. Others include vehicle dynamic control, rear sonar system, cruise control and a rearview monitor.

The G37 also posts short braking distances. When cruising at 60mph, it will come to a stop at around 106 feet or around 32 meters, which is quite an impressive feat for a luxury car.

The G37X is yet to be crash-tested by the National Highway and Traffic Safety Authority (NHTSA). But based on the crash tests performed by the Insurance Institute for Highway Safety (IIHS), the results are not that impressive.

But as for the available safety features, they are comparable with what’s offered in the G37. They include vehicle dynamic control, brake assist, rearview monitor, front-seat airbags and curtain-side supplemental airbags, an advanced airbag system with seat belt sensors, and dual-stage front airbags, as well as front knee bolsters.


The starting price for both models is around $30,000 for a new car and approximately $18,000 if you decide to go for a used one. In short, there’s nothing much to separate these two Infiniti cars in terms of price.


The Infiniti G37 and the Infiniti G37X are both great cars, for someone shopping for a midsize luxury SUV. However, the G37 appears to have an edge over the G37X in terms of performance, safety, style, and level of features. On the other hand, the G37X outperforms the G37 in fuel economy. Overall, the car you should go for will depend on your preferences.

Infiniti G37 Vs G37X (List of Differences)

About The Author

Charles Redding

Charles Redding

I've spent many years selling cars, working with auto detailers, mechanics, dealership service teams, quoting and researching car insurance, modding my own cars, and much more.

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