Nav and a music hard drive with a CD changer in the dash (not in the trunk); more fuel efficient without sacrificing power or performance (I know you Infiniti engineers have it in you); rear seats that fold down to increase storage space when wanted; more colors.

Current sedan has a "pass through" but no option (or standard for that matter) fold down seats in the rear

Its from the infiniti euro site.

Infiniti's 2009 ordering guide was released today, and confirms the 2009 Infiniti G37 Sedan for the U.S.

New features on the MY09 G Sedan:

Name Change From G35 to G37
3.7L VQ Engine with VVEL Technology (320+ HP TBD)
Electronically-controlled 7-Speed Automatic Transmission (JATCO)
Available 4-Piston Front Brakes with 14-inch Rotors (Akebono)
Available Split 5-Spoke 18-inch Aluminum-Alloy Sport Wheels
Re-Designed Side View Mirrors
Scratch Shield Paint
Dial-Type Seat Heater Switches
Power Door Locks with Automatic Locking

2 New Exterior Colors:
Moonlight White
Sahara Sandstone

Models and Option Packages Contents

2009 G37 Sedan
■ Includes all standard equipment

G37 Journey
■ Includes all G37 standard equipment
■ Auto-on/off headlights
■ 8-way power passenger’s seat
■ Dual Zone Automatic Temperature Control (ATC)
■ Rear air conditioning vents
■ In-dash, 6-disc CD autochanger with MP3
playback capability

G37x AWD
■ Includes all G37 Journey standard equipment
■ Intelligent All-Wheel Drive (AWD)
■ Heated front seats
■ Heated outside mirrors

G37 Sport 6MT
■ Unique sport-tuned suspension
■ Close-ratio 6-speed manual transmission with short-throw shifter
■ Quicker steering gear ratio for greater response to driver input
■ Viscous Limited-Slip rear Differential (VLSD)
■ Hand-pull parking brake (replaces foot-operated parking brake)
■ Split 5-spoke 18-inch aluminum-alloy wheels with 225/50R18 (front)
and 245/45R18 (rear) summer performance tires
■ 4-piston front and 2-piston rear calipers, with 14-inch front and
13.8-inch rear disc brakes
■ Unique front fascia and side sills
■ Front sport seats with manual thigh extension and driver’s power
torso and thigh support adjustment
■ Unique sport stitching on steering wheel and front seats
■ Aluminum pedals

Sport Package
■ Includes all G37 Sport 6MT standard equipment, excluding
manual transmission
■ Solid-magnesium paddle shifters mounted on steering column
■ Foot-operated parking brake
Available on G37 Journey.

Sport Package AWD
■ Solid-magnesium paddle shifters mounted on steering column
■ Split 5-spoke 18-inch aluminum-alloy wheels with 225/50R18
all-season tires
■ Unique front fascia and side sills
■ Front sport seats with manual thigh extension and driver’s power
torso and thigh support adjustment
■ Unique sport stitching on steering wheel and front seats
■ Aluminum pedals Available on G37x AWD.

Premium Package
■ Power sliding tinted glass moonroof with one-touch open/close,
tilt feature and sliding sunshade
■ Infiniti Studio on Wheels® by Bose® Premium Audio system with
24-bit Burr-Brown DAC, 6-disc CD autochanger with MP3 playback
capability, Radio Data System (RDS), and eleven speakers, including
3-way component front door speakers with 10-inch subwoofers and a
parcel shelf-mounted subwoofer
■ Driver’s Audio Stage
■ Interface System for iPod®
■ Heated front seats and outside mirrors (standard on G37x AWD)
■ 2-way power lumbar support for driver’s seat
■ Memory system for driver’s seat, steering wheel and outside mirrors
■ Driver’s seat, steering wheel and outside mirror position
synchronization
■ One-touch auto-up/down rear windows with safety auto-reverse feature Premium Pack age (continued)
■ Power-tilt and telescopic steering wheel
■ Automatic anti-glare rearview mirror with HomeLink® Universal
Transceiver and compass
■ Bluetooth® Hands-free Phone System
■ Infiniti Voice Recognition for audio, Bluetooth® Hands-free Phone System and available navigation
Available on G37 Journey, G37x AWD and G37 Sport 6MT.

Navigation Package
■ Infiniti Hard Drive Navigation System with touch-screen, Lane Guidance
and 3-D building graphics
■ XM NavTraffic® providing Real-Time Traffic information1
■ 9.3GB Music Box hard drive with CompactFlash® slot (replaces 6-disc
CD autochanger)
■ Single in-dash CD player
■ Infiniti Voice Recognition for climate control, audio and navigation systems
■ RearView Monitor2
Available on G37 Journey, G37x AWD and G37 Sport 6MT.
Requires Premium Package. Deletes compass in rearview mirror.

Technology Package
■ Intelligent Cruise Control with Preview Braking3
■ Adaptive Front lighting System (AFS)
■ Pre-Crash Seat Belts
Available on G37 Journey, G37x AWD and G37 Sport 6MT.
Requires Navigation Package.

Performance Tire and Wheel Package
■ Split 7-spoke 18 x 7.5-inch (front), 18 x 8.5-inch (rear) lightweight
cast aluminum-alloy wheels with 225/50R18 (front and rear)
W-rated summer performance tires
Only available on G37 Journey. Requires Premium Package.

4-Wheel Active Steer Package
■ Front Active Steer and Rear Active Steer systems
Available on G37 Journey with Sport and Navigation Packages and rear spoiler; available on G37 Sport 6MT with Navigation Package and rear spoiler.

Moonroof
■ Power sliding tinted glass moonroof with one-touch open/close, tilt feature and sliding sunshade
Available on G37 Journey and G37x AWD. Moonroof included
in Premium Package.

Wood Trim
■ African rosewood interior trim on center console, instrument
panel and doors
Available on G37 Journey and G37x AWD. Requires Premium Package. Not available with Stone interior, rear spoiler or 4-Wheel Active Steer Package.

Rear Spoiler
Available on G37 Journey and G37 Sport 6MT with 4-Wheel
Active Steer Package and on G37x AWD with Sport and Navigation Packages.

new 18" rims (no, 19's STILL not available)


interior looks essentially the same (note the euro seat heater knobs though)


So this might just solve all my problems.... I could definitely see myself turning in my current G35 sans my new Work Wheels and springs and putting them on a new G37 Sedan.    Its definitely getting the big brake package this time around (per the specs above), ipod integration, 7speed auto, that new-fangled paint, and by next November, (when my lease is up) i bet deals will be easy to come by on this ride!  Just have to decide whether I want a 6MT or the 7AT this time around.   Have to think about NAV/TECH pkgs... can't say I've really missed them, but I'm kind of a techie, and I like stuff to play with.

It does say this though: which would infer that it DOES include the BBK... right? 

Great find Brandon, and very interesting.

I think it is a very good move on the part of Infiniti to release the G37 Sedan in the US, a very important market for Infiniti, and not just in Europe.  I also think it is great that Infiniti is making the G35/37 a better car.  But I do wonder why Infiniti is making such a major change to the G35 Sedan only two years after release of the 2007 model.  Since the actual shape of the car has not changed, does that limit the cost to Infiniti of making the changes? 

Is it true that most car manufacturers tend to make a significant redesign of a model every approx four or five years, and then just tweak it a little in the intervening years?  When the G35 was first released (in 2002 as a 2003 model?), Infiniti thereafter did not release a major redesign of the car until 2006 for the 2007 model year.  For the 2003, 2004, and 2005 models, was there an upgrade nearly as significant as the G37 Sedan upgrade of the G35?  If not, what do you think has motivated Infiniti to accelerate the pace?  The G35/37 obviously is a very important car for Infiniti, as it accounts for most of its sales.

A few more questions?  How does the engine to be used in the G37 Sedan compare to the engine in the G37 coupe?  Do you think Infiniti will gear the G37 Sedan for better gas mileage?  If so, will the bigger engine compensate for any loss of acceleration by gearing the car for gas mileage? 

Others can probably more accurately address this subject, like Sean, but if I'm not mistaken, there WERE some changes during the 1st gen.  For example

hp improvements in 05-06 over the 03-04 years


Some other enhancements noted by Wikipedia for the 05 MY