I think its a good way of getting a fair idea of the sort of power your mates car is pushing out. Like "I have just bought a saphire cosworth and it putting out 230BHP". Pretty standard car, were as "I have just bought a saphire cosworth and its producing 500BHP". But as braging rights I think its just the round ones. At the end of the day it only maters at the lights
Im not a power junky, I have always found that with power come a lot of ball ache and hassle. If my car can over take wagons on the motorway than Im happy