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Infiniti EX: compact premium crossover, engines and trims
Infiniti EX — launched in 2007 as a premium compact crossover, later renamed QX50. Here, we look at the EX35, EX37 and EX30d versions, their tech and what to check when hunting for a used car.
EX in brief
Infiniti EX — a sporty, low-slung compact crossover built on the Nissan FM platform. Its styling is closer to a lifted hatchback than a traditional SUV, and the interior is relatively high-quality.
The car offered spirited driving, V6 engines and luxurious kit. It's rare in Lithuania, so your choice in the used market is limited.
Which version to choose
The EX was produced for one generation, but in 2010 it received an update: the more powerful EX37 engine arrived and for some markets, the EX25 and diesel EX30d. The model was renamed QX50 in 2013.
For most buyers, the EX37 and EX30d are the most interesting. The key is to find a car with a full service history and reliable electronics.
Engines and gearboxes
Early cars came with a 3.5-litre V6 (EX35, around 300hp). Later, a 3.7-litre V6 (EX37, around 320hp) and for some markets a smaller 2.5-litre V6 and 3.0-litre V6 diesel (EX30d).
The gearbox is mostly a seven-speed automatic. Most versions have four-wheel drive, although there were rear-wheel drive cars too.
What to check when buying a used EX
Ensure all electronic systems are working: cameras, parking and safety systems, multimedia. Check the condition of all wheels, the gearbox, and suspension.
Consider the running costs — a V6 petrol engine and larger wheels mean higher fuel and tyre expenses. For diesel versions, check the particle filter and turbocharger.
Trim levels
Names and equipment vary by market and year; we describe the most commonly encountered versions.
EX35
2007–2010 model yearsBase version with 3.5 l V6.
- 3.5 l V6, around 300 hp
- Often — all-wheel drive
- Often — leather interior and surround-view cameras
EX37
From 2010 onwardsUpdated version with 3.7 l V6.
- 3.7 l V6, around 320 hp
- Often — all-wheel drive
- Often — wide safety and comfort equipment package
EX25
From 2010 onwardsSmaller engine version for some markets.
- 2.5 l V6
- Often — basic trim
- Less commonly found
EX30d
From 2010 onwardsDiesel version for the European market.
- 3.0-litre V6 diesel
- Seven-speed automatic gearbox
- Often — full trim package
Trim comparison
| EX35 | EX37 | EX25 | EX30d | |
|---|---|---|---|---|
| Who it suits | For the first V6 versions | For most buyers | For a lower price | For a more economical engine |
| Engine | 3.5-litre V6 | 3.7-litre V6 | 2.5 l V6 | 3.0-litre V6 diesel |
| Gearbox | Often four-wheel drive | Often four-wheel drive | Depends on the version | Four-wheel drive |
| Price in the used market (relatively) | €€ | €€ | € | €€ |
For most buyers, the best choice is the EX37 or EX30d with a full history. The EX35 suits those looking for a cheaper V6.
Pros
- Sporty handling and powerful V6 engines
- High-quality interior
- Lots of features, cameras, and safety systems
- Distinctive styling
Cons
- High fuel consumption
- Low model popularity in Lithuania
- The interiors and boot space of earlier versions aren't spacious
Frequently asked questions
How does the EX differ from the FX?
The EX is a smaller, more compact crossover, while the FX is larger and more powerful. The EX is ideal for city driving, the FX for longer journeys.
Is the EX the same as the QX50?
The first-generation QX50 is essentially the EX, just with a new name. The second-generation QX50 is a different, all-new model.
Is the EX economical?
No, the petrol V6 engines guzzle fuel. A more economical option is the EX30d diesel.
Updated 2026-10-21 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
