You had a similar post months back which I commented on and I will again comment here, this post is misleading and in no way statistically reliable. First, you already note that the trip overall is mostly downhill. Without a return trip to average this out, you are not getting an accurate read. Second, 10 miles is hardly a good enough sample size, it’s not even one tank. When I take my foot off the gas and coast to reduce my speed sometimes the instant MPG readout will say 99mpg but that doesn’t mean my car gets 99mpg. No Blackwing is getting anywhere close to 35 mpg over the course of a tank. Not trying to burst your bubble but people who are car shopping for a BW may look on this forum and read your post and be severely mislead. I think I average about 23 on the highway with my 6 speed and that’s without putting my foot into it.
