The Supra is rear wheel drive, as I recall. That could mean the offset is totally wrong. The stock Vibe alloy wheel offset is about 35mm, I believe. I've seen 'compatible' rims listed on tires.com and tirerack.com with offsets between about 30 mm and 42mmThe tire size 225/50-16 is slightly wider, but a compatible equivalent to the stock 205/55-16, so it wouldn't affect your speedometer at all. If the bolt circle and the offset are in the ballpark you're probably in business.
My 2003 Vibe Base Auto 2-tone Salsa "SalsaWagon" was built in May 2002. I acquired it in Feb 2004/Traded it in on a 2016 Honda HR-V in Feb 2018.
Both the newer and older style Supras have a 5-114 bolt pattern, so those wheels will not fit on the Vibe without adapters. http://cgi.ebay.com/ebaymotors...=WDVW