One is a 2021 Mercedes-Benz S-Class, this one, in which they throw all the technology to make it the best large sedan. S-classes are offered with all kinds of engines, up to and including very powerful petrol ones, but this is a little simpler - this is an S400d. In fact an engine that suits it quite well. It costs 104,425 pounds, has 330 hp, and more importantly - huge range.
The other car is still relatively new and is more expensive and luxurious. This is a Bentley Flying Spur, which costs 168,300 pounds and has 635 hp - both figures are quite a bit larger than those of the S-class, but don't let semantics get in your way - more expensive S-classes and cheaper Flying Spurs are available. Moreover, there is a reason for the mismatch, explained in the video by Autocar:
