As Fummins has already pointed out, the newly updated Mirage in the UK appears unchanged mechanically. Different units of measurement create slightly different numbers for the same thing.
"A metric horsepower is the equivalent of 0.986 horsepower – this is why the Volkswagen Golf R is advertised with 300PS but only has 296hp. Equally, 300PS sounds better than 296hp simply because it’s a bigger number."
Using that logic, 80 sounds better than 78!!!