If you can not get a hold of a set of LX 20's due demand for them being so high, get these tires as a healthy alternative. The tread pattern caters to BMW's camber setting. They really do grip the road. You can drive 80mph down the road in the rain and have no worries at all.
If you have an AWD sedan, I would definitely consider these tires. They are rated higher then Michelin pilot sport A/S tires in the snow.