The '98 and up Metro/Swift/Firefly has a massive amount of open area in its bumper.
I'm sure I've blocked well over 80% of mine (with a home-made "bra"):
From:
http://ecomodder.com/forum/showthrea...k-bra-285.html
This is one mod I would just go ahead and do. It's guaranteed to help. (Unless of course, you're a nerd for the data and just want to run the test. Then, by all means have fun!)