Had my '05 G for 68 months. Sold it last week and got a '12 G37 sedan.
I always loved the smooth, feminine lines of the '03-06 Gs. The interior was a bit squeaky and I never really liked the orange gauge lights,but I never had any mechanical issues until recently, when the car was nearly 9 years old.
Then the power seat switch failed ($1,700) and the power adjustment for the steering column failed too.
Personally, when electrical issues start cropping up, I ditch the car. The car was great for what it was - a sport sedan.
Rear seat room was a little tight, but I feel I got my money's worth for the car, my favorite so far. We have had five Infinitis and two Nissans through the years.
Great Looks, Fun to drive, Still a car for its age
written on 05-13-2015
Rwd 4dr Sedan (3.5L 6cyl 6M)
I bought my 05 G35 Coupe 6spd in Oct 2014 with 116k miles. Before buying this car I looked at a 05 BMW 3series, Honda S2000, and Nissan 350z. For the price range, the G35 has the best value and features. It has usable back seats, 19" rims with TPMS (tire sensors), all power options, and Navigation. Overall its a nice luxury sports car, but at this age and mileage but at this age is expected to have some issues and be a little outdated. I repaired a few things: front brakes, 6cd changer/nav, front control arms, clutch master cyclinder, and drive belts. Maintenance costs can be expensive if you don't have warranty. It only uses Premium gas but I get 19-20mpg city and around 25mpg hwy.
Update: During hot weather e.g. summer, the clutch pedal will only return half-way up after being released when you're driving in traffic. So you'll have to pop the clutch pedal back to its original position with your left foot. From my research, this is a fault of the design of the clutch pedal and also the clutch fluid line location. I try not to drive my car when its very hot or in heavy traffic (night time driving and highway is fine though). During the winter when outside temp is 75F or below, the clutch pedal is not an issue.
On the plus side, the A/C system on the G35 is excellent and always keeps the inside very cool in the summer. The heated front seats are great during winter as well. The car looks great and the exhaust sound is very sporty. The engine has plenty of power and torque for daily driving.
I've had my G35 for 4 years now and I used to change cars regularly. Previous cars were BMWs and Mercedes but I got tired of the exorbitant costs involved in just keeping them going.
This last time I looked at the little BMWs and Mercedes and thought why not try something different? So I looked at the Infiniti G35 and the Lexus GS300. There was not much of a cost difference and the Infiniti seemed like so much more car for the money.
People complain about the mileage. I get a solid 21 mpg with 80% hwy driving. That's excellent for a heavy car with a powerful engine. Sadly it does drink premium only.
Back in October I bought an 05 G35x and was a great choice. I've been through 3 generations of Infiniti's and never had any problems. Since mine was bought through an auction when it was taken in for routine maintenance there were all the service records were maintained. Not saying everyone will agree about how great a G35x is but in my opinion a fun & great car compared to alot of the higher end luxury cars.
If you have $8K to spend on a sporty sedan in 2016
written on 09-08-2016
Rwd 4dr Sedan (3.5L 6cyl 6M)
You can't go wrong with this car. My old car died unexpectedly, so I was in a bind to get something that looked good, was inexpensive but sporty and had four doors. I found this clean six-speed manual G35 on a used car website, the price was only $8700. It had 85K miles on it, was in great shape inside and out, had 18 inch wheels, dark tint, black on black with leather interior and the Bose radio. I only drive manual transmission cars, so I jumped on it, and I've had it two weeks now. It's not perfect, but I seriously love this car. The GREAT things about it are: It's quick. Acceleration is top notch! Shifting is short and smooth, passing is easy, and the engine has a low roar that will get you in a good mood. It feels solid on the road. Handling is great. The styling doesn't scream "I'm 11 years old!" at all. It still looks really good. When I tell people it's a 2005, they are surprised. Other good things to note - the inside is roomy for a sports sedan, even in the back seat. Power outlets, three cubbies for storage, in-dash 6 disc CD changer, and an armrest that comes down with cupholders for the rear passengers. I like the location of the clock and the features like cruise control, seat memory, and the dash are easy to use and locate. As far as getting a sporty sedan with the most bang for your buck, a used G35 is the way to go. Now - the bad stuff is the same as other reviewers. The inside is a bit noisy - little clicks, clanks and creaks as you are driving. They are slight but you will notice them after a while and wish they would go away. I also don't know why the Bose audio is supposed to be spectacular because it's nothing special. Not much bass unless you really crank it. I'm already thinking about upgrading the head unit and speakers, because I had better factory audio in my old Mustang. The inside materials and design are also basic and nothing special. Also the turning radius seems a bit wide. Overall though, unless you are really nitpicky about the negatives, I would recommend this car in a heartbeat.
UPDATE...Edmunds asked me to update my review. I've had the car six months and I still love it. I just might be an Infiniti fan for life.