2013 INFINITI EX: What's New, Specs & Features

Last updated August 13, 2026

2013 INFINITI EX

The most important change for the 2013 INFINITI EX is a larger, stronger 3.7-liter V6, which replaces the previous 3.5-liter engine. The model is renamed EX37 to match, while the rest of the vehicle largely carries over.

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About the 2013 INFINITI EX

1st generation EX / later QX50 family (J50, introduced for 2008); 2013 is the final U.S. model year before the EX name changes to QX50 for 2014.

INFINITI positioned the EX as a compact luxury crossover with a coupe-like shape, strong V6 power, and a driver-focused cabin. Its main appeal was giving shoppers hatchback utility and a more elevated driving position without giving up the quick responses and premium interior feel associated with the brand’s sport sedans. Compared with roomier rivals, the EX leaned more toward style and driving feel than maximum rear-seat or cargo space.

The EX37 is the core compact luxury crossover, with leather seating, a rearview camera, push-button start, and a seven-speed automatic transmission. The EX37 Journey adds more comfort features, including heated front seats, a moonroof, Bluetooth phone connectivity, maple interior trim, and a power-adjustable steering column.

What changed, by category

Powertrain
A 3.7-liter V6 replaces the previous 3.5-liter V6 across the lineup. It produces 325 horsepower and 267 lb-ft of torque, while the seven-speed automatic transmission carries over.
Styling
EX37 badging replaces EX35 badging. The body itself is not redesigned.

2013 INFINITI EX specs and features by trim

2013 INFINITI EXEX370 in stock
2013 INFINITI EXEX37 Journey0 in stock
EngineV6, 3.7 LiterV6, 3.7 Liter
TransmissionAuto, 7-Spd w/ MMAuto, 7-Spd w/ MM
DrivetrainAWDAWD
Fuel TypeGasGas
MPG City17 mpg17 mpg
MPG Highway25 mpg25 mpg
Horsepower325 hp325 hp
Torque267 lb-ft267 lb-ft
Max Towing1000 lb1000 lb
Trunk/Cargo18.6 cu-ft18.6 cu-ft
Rear Legroom28.5 in28.5 in
Seats55
Doors44
Adaptive Cruise Control
Adaptive Headlights
Alarm System
Automatic Leveling Headlights
Blindspot Sensors
Active Lane Keep Assistance
Rear View Camera
360 Camera
Alloy Wheels
Fog Lights
HID Headlights
Memory Exterior Mirrors
Power Moonroof
Rear Spoiler
Roof Rails
Bluetooth
Front DVD Entertainment System
Navigation System
Premium Audio
Satellite Radio
USB Ports
Aluminum Interior Trim
Auto-Dimming Interior Mirror
Dual-Zone Climate Control
Heated Front Seats
Integrated Garage Door Opener
Leather Seats
Memory Driver's Seat
Memory Steering Wheel
Power Folding Rear Seat
Proximity Keyless Entry
Push-Button Engine Start
Wood Interior Trim

Frequently asked questions

What changed on the 2013 INFINITI EX?

The main change is a new standard 3.7-liter V6 with 325 horsepower and 267 lb-ft of torque. The EX35 and EX35 Journey names become EX37 and EX37 Journey, while the basic trim structure and seven-speed automatic remain the same.

Does the 2013 INFINITI EX have a different engine from the 2012 model?

Yes. The 2013 EX uses a 3.7-liter V6 in place of the 2012 model’s 3.5-liter V6. Output rises to 325 horsepower and 267 lb-ft of torque.

Were the 2013 INFINITI EX trims renamed?

Yes. The EX35 continues as the EX37, and the EX35 Journey continues as the EX37 Journey. The new names reflect the move to the 3.7-liter V6 rather than the arrival of unrelated replacement trims.

Is the 2013 INFINITI EX the last model year with the EX name?

Yes. The 2013 model is the final U.S. model year called EX. For 2014, the vehicle continues under the QX50 name.

Was the 2013 INFINITI EX fully redesigned?

No. The 2013 EX is not a full redesign. Its main updates are the larger V6 and the EX37 name and badging; the body, platform, trim structure, and major technology offerings otherwise carry over.

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