The 2013 model year brings a raft of changes and upgrades to Infiniti’s U.S. lineup, the most important being the introduction of the new FX37 and EX37 with a more powerful engine, and the company’s decision to discontinue the G25 sedan.

We’ll start with the 2013 FX37 and EX37 that will replace the 2012 FX35 and EX35 in July and August respectively.

Like their European counterparts, both crossovers swap the 3.5-liter V6 engine that produced 297hp and 253 lb-ft in the EX35 and 303hp and 262 lb-ft in the FX37 for a larger displacement 3.7-liter V6 rated at 325-horsepower.

The G25 sedan featuring a 218HP 2.5-liter V6 was introduced in the States in September of 2010, but evidently wasn’t a success with customers as Infiniti will stop offering the model in December.

You can find more details on Infiniti’s 2013 model year changes in the list that follows below.

From Infiniti:

Infiniti JX Luxury Crossover

  • Introduced in spring 2012
  • Offers 3-row / 7-passenger seating
  • Designed to push the boundaries of what a luxury crossover can be
  • Unique features include exceptional seating flexibility and easy access to the roomy 3rd row (without having to remove a 2nd row child seat)
  • Available advanced technology includes Infiniti Connection™ and world’s first Back-Up Collision Intervention™ (BCI) system
  • Starting M.S.R.P. of $40,450 USD
  • Available now

Infiniti M Performance Luxury Sedan

  • The popular Sport Package is offered for the first time with Infiniti M AWD models
  • Sport Package includes features such as 20-inch aluminum-alloy wheels, sport-tuned suspension, Sport Brakes, solid magnesium paddle shifters, sport seats with enhanced bolstering and unique front fascia
  • The M56 AWD Sport Package also adds the content of the Sport Touring Package (Bose® Studio Surround® sound system with 16 speakers, Forest Air® system and power rear sunshade)
  • The Premium Package now includes rear sonar system and Infiniti Connection™
  • All 2013 Infiniti M models add auto-dimming sideview mirrors and an auto-trunk cincher
  • A new Stone Sport interior color is offered with Sport models
  • A new Performance Tire & Wheel Package with 20-inch wheels and tires and Sport Brakes replaces the previous 18-inch Wheel Package
  • Available July 2012

Infiniti G Sedan

  • A simplified lineup for 2013 with three available models: G37 Sedan Journey, G37 Sedan Sport 6MT and G37x Sedan AWD
  • The previously available G25 Sedan, G37 Sport Appearance Edition and G37 Limited Edition are discontinued (the 2012 Infiniti G25 will be available through Dec. 2012)
  • There are no major enhancements
  • Available September 2012

Infiniti G Coupe

  • For 2013, the G37 Coupe base model is no longer available
  • Revised Stone interior color with Graphite components (Wheat interior color is no longer available)
  • Standard Silk Obi aluminum interior trim replaces the previous Shodo aluminum trim
  • Available now

Infiniti G Convertible

  • No changes to the G37 Convertible and G37 Convertible Sport 6MT models
  • Available now

IPL G Coupe

  • IPL logo replaces the previous Infiniti logo on IPL model front seatbacks
  • Monaco Red interior now also offered on G37 Coupe IPL 6MT models and Graphite Shadow exterior color (previously offered only with the 7AT and Malbec Black exterior)
  • Available now

IPL G Convertible

  • IPL G Convertible joins IPL lineup
  • IPL G Convertible includes an array of special performance and luxury upgrades – including 18 extra horsepower (343 hp), 19-inch IPL split 7-spoke aluminum-alloy wheels with Graphite finish, Sport Brakes, IPL-tuned exhaust and suspension, unique front fascia and side sills, and climate-controlled front seats with IPL logo.
  • Available now

Infiniti QX Full-Size Luxury SUV

  • Moving Objection Detection (MOD) added to the standard Around View® Monitor
  • New standard auto-dimming exterior mirrors
  • Upgraded remote control and interface added to the Theater Package
  • New Smoky Quartz exterior color (replaces Mountain Sage)
  • Available September 2012

Infiniti FX Performance Luxury Crossover

  • FX37 model replaces previous FX35, includes standard 325-horsepower 3.7-liter V6 (replaces previous 3.5-liter V6)
  • Moving Objection Detection (MOD) added to the available Around View® Monitor
  • Iridium Blue exterior color now offered for all models except Limited Edition
  • Limited Edition available only with Moonlight White exterior and Graphite interior color combination
  • Java interior color now available with Liquid Platinum and Graphite Shadow exterior colors
  • Available July 2012

Infiniti EX Luxury Crossover

  • EX37 model replaces previous EX35 model
  • 325-horsepower 3.7-liter V6 standard (replaces previous 3.5-liter V6)
  • Available August 2012