I didn't like the look of the 2015 Infiniti Q 40-50, so I've bought this G37XS 2 years old with 26K on odometer for about 60% of the original price. Looking for the vehicle I've discarded the grossly overpriced and high maintenance German car. So far, I've been driving it for 2 years. The car was like new and the experience is really great. I use this car mostly alone (my wife prefers her SUV), so the rear room isn't critical. The exterior and interior are pleasing, and there is a good balance between sportiness and comfort. The car is fast, very stable and has great solid feel being well planted on the road. This is the perfect highway vehicle and I enjoy it even in heavy traffic especially its excellent stereo.
The only thing I had hard time to adjust is its 7 speed autobox. It is not smooth and it takes a while to get used to its misses to develop the right foot pressure for more or less smooth gear changes. The fuel consumption is acceptable for this engine and achieve around 11 litres driving mostly 125-135 km/hour during warmer months. The maintenance cost is at par with cheaper vehicles. Overall it is a great car.