'All new' Mazda 3 has a 2-litre NA petrol engine in 2 states of tune.
The first is 120bhp@6000rpm (210Nm@4000), 0-60 8.9s, 119g/km CO2
The second 165bhp@6000rpm (210Nm@4000), 0-60 8.2s, 135g/km CO2
Now both engines are the same displacement and run 14.0:1 compression.
It would appear to me that the 120hp variant is either a massively detuned version of the more powerful car (?with a smaller throttle) that goes flat after 4000rpm, or Mazda are telling porky pies to 'upsell' the 165bhp version.
Any techy-geek ideas?
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