i'm not a fan of this at all... not only does a mixed set look horrible & cheap...

but all tires are designed/constructed differently (performance level, speed rating, tread design, etc)... a match set is the recommendation not only from me but tire professionals would state the same.

info links: http://www.coopertires.com/html/tire...tiremixing.asp

http://www.tirerack.com/tires-techpage-1/136.shtml

i would just put 4 conti sport contact all season tires on your crossfire... they are cheap enough & work well.