Having previously owned a G-35X, the M-56X is a beast. It doesn't have the handling characteristics of the G-35, which were fantastic, but the M is a bigger car. The 420 ponies under the hood are just awesome.
I have been driving BMW 550i since 2006 (first release of 550i). I cant deny I had a lot of fun and appreciation toward my Beemer. But I did not notice any subtaintial improvement from the model 2006 to 2008, even the HP remained the same between 2006-2008, this year they did man up to 400 HP...but the price also jump to almost 1.5 times. So I took a look at Audi, Lexus, Acura and eventually ended showing up in infiniti showroom. I was not really thrilled about exterior but the performance of the car is outstanding. The comfort seating, smooth driving and the 420 hp did blow me away. The navigation system, rear view camera, and the gear mode changing are excellent...
This is my 3rd M and is the the best of the lot in all aspects except one. The transmission is a disaster. It has too many gears and is constantly searching for the correct one. Very annoying. It's a magnificent beast on the highway on a long trip. Not meant to be driven around town.
"Blind Spot feature is fantastic. Very comfortable seating and plush interior. Sound system is unbeatable.
Motor locking trunk should be standard at that price. One of the 4 drive modes should be for city driving.
The only thing better than my M45, was the M45X I purchased, then along came the M56X - I got one of the first in the region. Nissan really listened when they built this. Everything has improved, and the additional horsepower puts it into a different league. I love the ride - feels more substantial, and corners like it's on rails with breathtaking acceleration. My wife says it reminds her of our BMW 750 - but more fun, with a sexier interior and exterior. Electronics, back up cam, sound system, etc. all exceptional. They even added a heated steering wheel and retractable outside mirrors. The dial-a-transmission is very clever. Bravo!
Looks, reminds me a bit of the Maserati Quattroporte - photos don't do it justice. Power. Sound system. Handling. CD Storage capacity. Controls that allow access to electronics via touchscreen, console or on steering wheel.
I haven't run into anything yet as it's too new. Loaded a CD into memory that it didn't tag with a name, but think that is because it was home brew disk.
I have had the car a week, its great fun and cool to drive however if mileage is a concern the car is not for you, it is very powerful with the 400 HP V8.
the voice recognition system and phone integration with blackberry has been a disaster and stresses me out, especially the fact that call waiting is not available. I have to pick up and check my phone after each conversation. If your phone is your life you might consider something else.