This is the new Mercedes-Benz S-class. It’s one of the most important new cars of 2013, and the decade: it's a complete gadget and tech fest, with everything from suspension that can 'see' the road ahead, to heated armrests, plus a four-cylinder diesel hybrid model that'll do over 64mpg and emit just 115g/km CO2. Read on for the full story on the new Mercedes S-class...