Was able to get hold of a 2004 545 IA with 24k miles for US $28k. After having a couple of Impreza WRX rally cars and STI I decided to go comfy. I have found that the 545 is just superb. Great power (miss the turbo though), a little slow on the take offs due the heavy weight but more than happy with all the equipment and comfort. Tried the 525 and 530 - simply no comparison. V8 all the way!
Changed the wheels for M5 model... the look is just incredible and no one believes it's a 2004 model!