Well, where do I start, I originally has an IS250, and like all rear wheel drive car's it was hell in snow, I had the same problem last year, and when it snowed just before christmas, it was the last straw, I live on a slight incline I couldn't even get the car out and it just wasnt me, a BMW and a Mercedes couldn't get out. So on christmas eve I picked up an RX400h. After having the IS250 and a few scary moments I had it with it, I lost all confidence in driving in snow. So when it snowed last week, I looked outside and there was a bout 8 - 10 inches of snow, normally I would clear my drive and hald the road, I just sat in the car and drove, the neighbours were looking at me, thinking I was mad, It was amazing, I had no problem, It was that good, I will stick to the RX for the rest of my life, It is so amazing the car knows when to use 4 wheels, I can see it on the monitor when it is using all 4 wheels,, It just knows. Love it , Love it.