Because they didn't have to.
Which would you buy:
*$32k
*15" brakes
*295mm tires
*450hp
*18/24 mpg
-or-
*32k
*13" brakes
*275mm tires
*420hp
*20/25 mpg
95% would go with the first particularly when I tell you the first is .2 faster in the 1/4 mile and a couple tenths faster on a...
So you would be fine with the Mustang gaining 300 lbs? Because that's only 75 lb a tire...
And why aren't there tons of these cars?
Why?
Equal price +"better" parts = WIN
Right?
Even if the performance is the same?
All those things look good on paper...until people start to...
How to make a 3700+ lb 2015 Mustang perform:
*Design it to handle bigger tires, brakes, engine, suspension...+$
*Throw 6 piston brakes at it...+$
*Throw horsepower at it...+$
*Throw fancy stiff suspension at it...+$
*Throw massive rubber at it...+$
How do you make the pig faster? Spend...