I love my Jag XJ 2.7 diesel.
It's really quick and yet can do 50mpg on a run with just a little restraint.
It's supremely comfortable and has all the toys.
It can tow a two ton trailer.
However I don't think it complies with "peak" car because if one ECU fails, or the battery is a bit weak then all the electronics go nuts, and it's not ULEZ compliant so it' rapidly becoming an ornament instead of a car.
For me peak car has electronics, because toys like cruise control, but they should remain discrete and having one fail shouldn't kill the whole car. My 1996 Passat was like that and so was the 2000 806.
The smaller Rovers (25/45) were also like that and the last ones are ULEZ compliant so maybe peak car is a Rover 45 unless the last of the last Peugeot 406 was ULEZ compliant.