REVISIT: 2018 Mercedes-Benz S-Class review

March 2018: It’s almost futile to attempt to ‘objectively’ assess a vehicle like the peerless 2018 Mercedes-Benz S-Class. Does a buyer with anywhere from $200,000–$300,000 to spend really care about objective measurements anyway? Is there any merit in ‘comparing’ a vehicle to others when in reality it effectively sits alone in its class?