In a 370 you'll surely be going faster than surrounding traffic so who cares so long as you can see what's ahead!
Seriously though, I too found the blind spot on passenger side a bit freaky right at first but since I do a bit of track driving, I have my side mirrors set to the outside so that I don't really even have to turn my head at all. I don't find it to be a problem in the least.
(just don't let anyone borrow your car..
)