Last Thursday a teenager decided to drive in the wrong lane and collided head on with my wife's car. Fortunately, this happened at very low speed (< 40mph) so is seems that no one is hurt. As a result, our family car is gone.

We've managed to locate a silver 2003 E55 nearby. The dealer wanted 10K over, negotiated down to 5K I am pretty sure that with enough time we could find something at MSRP, but we do need a car now. Picking it up today.

This car is going to be a primary kids hauler, so reliability is a must.
I dont' think I'd care to raise the speed limit as it is totally useless in the US. But I do want the best handling possible for such a big heavy thing. Any suggestions for a new owner?