We just purchased an 2006 M5 2.5i wagon. This will be my wife's car and she has enjoyed the first 500 miles. We love the redesign for 2006, really like the side impact air bags, and the new lights look and work great. Interior is well built but the driver's seat is slightly uncomfortable for my 6'3" size during longer trips; a tiltable seat cushion would fix this problem. Better fuel economy would be nice, but AWD is a trade off. We live in snow country and AWD is a nice safety feature as are the airbags and Subaru's other safety features. We are very pleased so far with our Subaru.
Sport suspension tuning while retaining good ride quality, Easy clutch/shifter operation, Subaru reliability, excellent new head and tail lights.
Make an adjustable seat cushion for people with long legs, improve fuel economy, better base sound system.