A Lexus ES350 is a fancy Toyota Camry. An Acura TL is a Honda Accord with too much power to the wrong wheels. An Infiniti is a Nissan ('nuff said). A BMW 3-series is............a BMW 3-series.

Btw, just put on the winter wheels/tires on the 325i. The steering is so much more communicative, the ride so much more quiet, and the tramlining alleviated. Now the ride's just too soft!