Its not always about the BHP Andrew, Its how it puts it down,
Its all well and good having silly power but if you cant get it down on the road or your ability cannot drive that power then its just useless, Look at Jackie Chan in the red Suzuki Swift!!!!!
After I completed 2 races in the french trophey in 2013 I said my pals that I needed more power, They told me to wait, get used to the car under race conditions, learn what it does and once you can comfortably exceed the cars ability with your driving and your geometry the best you can get it then think about some more power.
Some say I was punching above my weight last year with a standard engine but that just goes to show the importance of a good geo/suspension set up and myself confidently pedaling the car.