With the launch of its new Q50 sedan, Infiniti is steering a new  course as it tries to navigate out of the second-tier of luxury brands  and take on better-known high-line marques like Mercedes-Benz, BMW and  Lexus.
The Q50 replaces the old Infiniti G series and initiates an  all-new alphanumeric naming strategy. It also introduces the world’s  first steer-by-wire technology, among a variety of other high-tech  features being added to the new sedan.
 
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