The BMW 7 Series is one of the most sophisticated cars currently on sale. It’s clear a lot of time and dedication has gone into its development, and it can now be considered a genuine rival to theMercedes S-Class. It may not be the most rewarding driver’s car, but few models in this segment prioritise sharp handling. Luxury, refinement and technology are areas where these cars are designed to deliver and in that respect the 7 Series excels. • Best luxury cars The amount of te