I've owned my 540i 6 speed sport for one year now. Although its going on 8 years old and 103K miles, it doesn't have a single rattle - the build quality is exceptional. The torque of the V8 is addictive and takes the car from an everyday commuter to track day hooligan. Two car seats fit great in the back and even though I'm putting in premium at >$3 a gallon, I'm getting 24 mpg on the highway in 6th gear. These cars are more maintenance intensive than your everyday Japanese appliance, but the drive is worth it!
I bought a "certified" BMW and had NOTHING but problems since I bought it. I have had three different severe problems with the cooling system alone and this is with a car with only 50,000 miles on it. All three cooling system problems happened three weeks after my "certified" maintenance expired and each cost approx $1000 to fix and left me stranded. This car drives nice and is fast and all but mechanically it is a nightmare and it totally unreliable. And again, it was a "certified" car when I bought it. BEWARE: BMW service like brakes and regular service is EXPENSIVE! $1000 just for front brakes which you need every 25,000 miles or so. I am not happy and getting rid of the car.
It is very fast and comfortable. It is the ultimate driving machine but you will pay out of your pocket big time for the driving enjoyment. It is a rocket, but it consumes gas (18.7 MPG for me). I really like the steering and comfort and it is a very cool car to be in. Mine is a sport model.
The cooling system is a mess. Radiators failing, entire cooling systems failing, hoses failing, it seems to be always something wrong with the cooling system and NOTHING is cheap to fix. Spent a fortune
I bought this vehicle certified pre-owned (CFP). BMW has one of the best CFP plans in the US. I love the car. I have had a few technical problems but other than that I love the car. I highly recommend it.
Sporty look plus sedan versatility
Need a little more leg room in the interior for talling people.
I love this car, a bit expensive for non-warranty items (expected). Drives VERY well. Acceleration, handling, and braking are the best I have found so far. Got this car at a bargain price, and paid the price for some needed repairs, but since being brought back to specs it has delivered respectable and dependable sevice. Fuel mileage has amazed me in that when driven sanely I average 21-22 in town and 26- 27 on the highway ... all that in a car that will do over 155 mph if you wish.
Acceleration is exceptional. Corners very well for a fairly large car and comes to a stop quickly. The sport package delivers 6-way power seats that are in the uppoer level comfort range.
Cup holders (not intended for the autobahn) are poorly designed and break too easily.