Zee, we're of course assuming the ratios are the same, aerodynamics also play a great role as speeds increase... but again, we're not getting that indepth.

15.4:1 IE, 15.4lbs to every whp.
That is a pretty decent p/w ratio.

My Civic had a 16.6:1 ratio. She was a porky bitch. @ 2615lbs.

From what I read your friend's Teg weighs 2643lbs.

Now at 146.7whp and 2643lbs... we get.
2643/146.7
18.016:1 Weight to power ratio.
Not nearly as good as yours IF you have the same whp as him. You would dominate his car.