The gorgeous Giulia Quadrifoglio seduces the soul and sears the senses with a beautiful balance of aggression and finesse. Alfa flaunts its racing pedigree with the four-leaf-clover badge displayed on the Giulia’s shapely flanks. Its Ferrari-derived twin-turbo V-6 sings a sinister tune, belting out 505 horsepower. Its clever, communicative chassis can conquer a race course with unfiltered ferocity or coolly traverse the tarmac without commotion. An excellent eight-speed automatic transmission and rear-wheel drive are standard; sadly, a manual gearbox is missing. Alfa Romeo’s past and present reliability issues also remain an unknown quantity. Still, the Giulia Quadrifoglio, or QF, is an exotic sports sedan that sets a new benchmark for the genre—which is why it made our list of 10Best Cars for 2018.