Base '08 automatic 328xi is $36,750 vs. base '09 A4 3.2 quattro automatic Premium+ at $40,000... but base A4 3.2 includes the following that are options (or unavailable) on the 328xi: 17" (non run-flat!) tires/wheels, leather seating, power front seats, Bi-xenons with daytime LED running lights, 3-zone climate control, heated front seats, 6-CD Symphony radio, Sirius, Audi music interface, Bluetooth, Homelink, auto-dimming mirrors, memory for driver's seat and mirrors, advanced key, trunk storage package, electromechanical parking brake, 26 vs. 25 highway mpg and 35 extra horsepower. (Sources: '09 A4 brochure and fueleconomy.gov) An '08 328xi equipped comparably lists for $43,245.