Infiniti's new "Signature" trim offering on the well-balanced 2019 Q50 luxury sports sedan offers cosmetic upgrades to this popular offering.
The 3.0 turbocharged V6 still churns out 300 hp and 295 lb-ft. of torque, which only adds to the Q50's allure.
With a significant uptick in popularity, we spend a week with the "Signature" line to see if it's worth signing off on.