There’s an inherent contradiction when you examine the Bentley Flying Spur prior to driving it. There are the stately looks and limo proportions. Scanning down the spec sheet your eye catches terms like ‘wellness seating’ and ‘front seat comfort specification’. Then the rear occupants are treated to an oasis of calm, with reclining, ventilated massage seats and blinds to shroud them in darkness should they so wish. Then you see 671bhp, 930Nm of …