I am looking to replace a 2004 330i with Premium and Cold Weather Packages. The 2004 330i model came with the improved sounds and sports suspension standard. Since we have to deal with many months of icy/snowy weather in Milwaukee, as a compromise, I chose all-season tires with the sports suspension that came standard instead of paying extra for the sports package or the performance package. For 2010, I am looking for a similar sports handling/performance or better. If I could afford it, I would go for an M3 4D sedan. However, the 2010 3 series choices are already better than what I have now. I am currently looking into the following two 2010 BMW 3 Series configurations. 328i 4dr Sedan (3.0L 6cyl 6M) ZPP Premium Package ZCW Cold Weather Package 522 Xenon Headlights 677 Logic7 Sound System w/Surround Sound MET Metallic Paint (Montego Blue) 5AC Automatic High Beams 248 Heated Steering Wheel ZVP Value Package 4B9 Aluminum Trim 335i 4dr Sedan (3.0L 6cyl Turbo 6M) ZPP Premium Package ZCW Cold Weather Package 677 Logic7 Sound System w/Surround Sound MET Metallic Paint (Montego Blue) 6FL iPod and USB Adapter 5AC Automatic High Beams 248 Heated Steering Wheel 4B9 Aluminum Trim As I mentioned before, I don't want performance tires. For the 328i, it is possible that the ZVP Value Package already includes the 2KU 17"x8"V-Spoke (style 285) alloy wheelsl 225/45R17 run-flat all-season tires (there is a question about this in another thread). For the 335i, the standard configuration already includes the same tires. The Sport Package / M Sport Package only real improvement is the 704 Sport Suspension. Everything else are just cosmetic updates: 481 Sports Seats 507 Park Distance Control (rear only) 710 M Steering Wheel 715 Aerodynamic Kit 760 Shadowline Exterior Trim 775 Anthracite Headliner 840 Increased Top Speed Limiter I am interested more in specific BMW Performance options that improve efficiency and handling. So, I am looking at the pricing and installation requirements for the following BMW Performance options: * Air Intake * Carbon Fiber Strut Brace * Short Shift Kit * Suspension Does anyone have any comments about the offerings of the M Sport Package vs. the BMW Performance Options I listed above? Which ones are better? Do all options apply to both the 328i and 335i? Or some to one and some to another? Any technical details are appreciated. Note: I don't go to race tracks. I just push it in small curvy isolated roads and like the sports responde/handling for normal city and highway driving conditions. Thanks!