It was about 40F when we test drove the car. I drove about 2 miles on the highway and then when I got off the exit, I pressed the button to display actual mpg. I took off, quicker than I normally would, and the mpg display went from 11 to 14 and quickly worked its way up to 38. That is when the saleman made his comment about low mpg when you first start out after the car has been sitting for awhile.

Thanks for your reply.