2006 BMW 5 Series 530xi 4dr Sedan AWD (3.0L 6cyl 6M)
This replaced an '04 E500 AWD Mercedes. This car has far better ride, is more responsive and much more fun to drive. Fit and finish are impeccable. Got the comfort seats which are worth every penny. I Drive is actually fun and easy once you get the hang of it. Big tip: Take delivery at the BMW Performance Center. Dealers rarely share this information with buyers. It's the only way to go, and free. A great experience, and you will learn more about your car and have more fun with it. Once you've done this it's unlikely you'll ever buy any car other than a BMW.
A real driver's car. Handles better than anything else on the road, including Porsche and Maserati. Impressive acceleration, which belies the engine size. Flawless comfort, fit and finish. Surprising fuel efficiency.
Larger wheels and tires. Should be at least 18". You can get them for more money and it's probably worth it, but they should be standard at this price. There are those who would prefer a bigger engine, but it really isn't necessary.