When it was unveiled back in 2014, the W205-generation C-Class redefined the premium compact market with its sporty exterior design and exquisite interior layout. Based on the larger S-Class, which was still new back then, the C-Class made the BMW 3 Series and the Audi A4 look old and dated. The fact that the two were three and seven years old in 2014 also helped the C-Class become the king of the luxury compact market instantly. But things have changed since them. Audi launched a new A4 in 2015, while BMW updated the 3 Series for the 2016 model year and it’s getting ready to launch a new-generation model in 2018. The C-Class is no longer that far ahead, so Mercedes gave its four-door a makeover.