Found great use for Chill Mode - bad weather. Used it yesterday in snow in NJ and it worked great with my Model S P100D. When I initially left my house yesterday with about 3" of snow on the road in the neighborhood I put the car in Chill Mode and the reduced throttle response was perfect for the conditions. Car handled generally well with only all season tires on the 21" rims, but I did have to take care of the understeer a bit.