If I remember right top gear uk had Porsche lover Hammond in a lime green gt3 and he was in love with the 450hp n/a car over the turbo model. He said the added weight plus the turbo lag was killing the car in the corners. Hammond went on to say the added power wasn't enough to make up for it in the straights plus the added cost of the turbo model the n/a was the better buy. I'm sure in a high way pull the turbo model would be faster but really who cares the gt3 is an art master piece that I'm sure is enjoyed by all who own them!