The 2015 Infiniti Q40 is part of the generation of cars previously known as the G37, before Infiniti restructured its model names. Under the hood lives a 3.7-liter V6 that produces 328 horsepower and 269 pound-feet of torque. The lone transmission is a seven-speed automatic and rear-wheel drive is standard, although all-wheel drive is an available option. This sedan offers brisk acceleration and a satisfying exhaust note, balancing sportiness with comfort in a way that's characteristic of the brand. Inside, the Q40 offers a comfortable cabin with high-quality materials, but its infotainment system is showing its age compared to competitors. Key safety features include an optional rearview camera, as well as standard safety systems such as traction and stability control, antilock brakes, and a full suite of airbags.