to many facters are unknown
in a striaght race with two cars that have around the same bhp it'll come down to putting the power down and the driver, areo dynamics of the cars, tyres and such as most remaps require a new clutch has this been done or other modifications?
I c your from Wales says it all really....... as you have no straight roads to test these things HAHA!
I presume your m8 is getting a
mk2 leon? and you are woundering if you can beat him?