I have the Sport edition 740iL. The car is phenomenal. Unbelievably roomy interior, great styling, and despite its size, it still handles nimbly like a much smaller car. Easy to understand and well-laid out controls. The throttle response is very linear and predictable, and it has an amazingly tight turning radius. It takes a licking and keeps on ticking. Mine was hit twice in the rear and once in the front (before I bought it), and after being repaired- you couldn't tell. It still handled and drove great. I love this car. I bought an S65 Mercedes to replace it, but I still miss the BMW. The Mercedes is a rocket ship, but it doesn't drive as nimbly and instinctively as the BMW.
Styling, roominess, handling
Easier to use Navigation. Bluetooth and MP3 integration. Better cup holders.