Cadillac brings the XTS in line for 2018

US luxury carmaker Cadillac has given its most popular sedan a rigorous refresh for the 2018 model year that sees everything from the front grille to the chassis receive some sort of tweak.With all of the effort it has been putting into ensuring its newest vehicles look and feel like premium German sedans and to get a younger car-buying demographic excited about them, it looked as if the Cadillac XTS, the company's biggest and last remaining front-wheel drive sedan, was heading to the retirement