The LS is one of the smoothest and quietest cars on the road, I'd say quietness is a 10.
Yes but there is a large driveline hump in the back which cuts down on legroom for the rear center passenger.
High teens city, low-mid 20s hwy
www.nhtsa.gov, www.iihs.com
Not without snow tires.
I second this. Snow tires are a must. I live in Alaska and drive a 99 LS400 and it gets around fine. I don't think there are many places with more snow than here. :D
I think it looks great in silver.