Clearly you are very passionate about your car. I am the same way with whatever car i own. A lot of times i come on a forum to ask questions that I already know the awnser to but i like to hear different opinions so i ask anyway. As far as the STI's performance against a Mustang or any other car similar it really is compairing apples to oranges. But i mean that in a good way for Subaru. Both cars are built for 2 totally different purposes. And on top of that the Mustand and Camaro recently morphed into a 2 seater sports car with an unusable joke back seat. There mainly built for straight line performance in nice weather and to be a high performance daily driver for a single person with no kids. The STI is a 4 door practical high performance off road ralley and road course racing machine that gets excited when it snows. I love all cars for different reasons. Ive owned them all. My list is a mile long. Right now i own a 2015 Challenger Scat Pack. But im looking at getting a 2017 STI. Actually i have $500 down holding one at a dealership its still in transit from Japan. Should be here on the 30th.. And honestly im torn between the two Because there 2 totally different cars and i love them both for different reasons. But i need a winter capable car and thats definitely not the Challenger.