Just going by your quoted horsepower figure and manufacturer weight, you'd have 185bhp/tonne. All depends how accurate the dyno you used was though.

I know when I drive with my missus in the car I can never really drive the car to its full potential, just give it a dab every now an then. Maybe he was looking after her hair-do :)
 
well my mate with the mapped e46 m3 soon put it up for sale when i beat him, the lcr isn't even stage 3'd! The leon had all bases covered, from 80mph onwards. It just pulls so hard in 5gear at that speed. and out of an island just slowly edged away! great stuff
 
With the M3 engine being normally aspirated you have to use all the revs to access the power, and a lot of owners don't do this as it makes them look like a boy-racer. The M3 has a better power-to-weight ratio than a remapped LCR so either they're not driving it properly or their car is down on power...