And the car performed flawlessly. Range miles were very close to rated if I held it below 65MPH with no HVAC. Return trip on Saturday was GORGEOUS and the sun roof is amazing to enjoy.. I bet you folks in California get to enjoy that almost every day! Few thoughts: wish I had 19's but I bought a loaner with 21's... I bet my #'s would be way better. The sun roof opened to 25% is MUCH more quiet than with it on vent... And the last thing is more of a question? I wonder if your drag is increased more by cracking the sunroof or the front windows? I ended up settling on the roof at 25% which seems more quiet than cracking the two front windows. It was such great weather, the HVAC was unnecessary.. All we needed was a little fresh air. But which is more efficient? Any fluid dynamics geeks want to take a stab at a hypothesis?