The Q50 is a luxury sports sedan, available in rear- and all-wheel-drive.
The standard 300-hp turbocharged V6 engine is very punchy and, combined with the standard seven-speed automatic transmission, makes the Q50 quick.
But it's to the detriment of fuel economy, which is a thirsty 22 mpg overall.
Handling is quite nimble, and the ride is compliant.
The cabin and back seat are relatively roomy, but the trunk is small, even for this class.
Fit and finish comes up a bit short, and the level of amenities is below the curve.
Infiniti's dual-touch-screen infotainment system is slow and cumbersome to use, requiring multiple steps and extra distraction for simple tasks.
A 400-hp turbo V6 is also available, as is a Q60 coupe version.
FCW and AEB are standard.