I run the sbp rallyes on my dart. Front is 15x7 with 205/60 tires and on the back 15x8 with 255/60 tires. The car is lowered 2" and i have no clearing problems. The rims are powdercoated flatblack. See some pics on my blog. Sorry, i´m not sure about the backspace but can measure them.
Greets
Juergen