Originally Posted by Zell
If you like sliding out on corners and a shitty plastic interior then go for the Mustang.
Yes, but the mustang will still be faster in both a straight line and on a road course, so if performance is you main desire the Mustang is the better car. If comfort is more of a concern then the 335i will be the better choice.
Wait, what is the definition of the "ultimate driving machine" again?