Make sure you don't fill your rental with premium gas!!!!! Ask me how I know!
Quite the opposite for me, I get surprised when I realize that I've only filled up once a week.You know you're *not* driving your M5 when...
you get reasonable MPG figures out of your daily...and you're kind of sad about it
when you see another m5 on the road and you wish you had yours.. and then you wonder if they're on the forum but there's no way you can get their attention in your bucket.