Yep.
2005 Vibe, base model.
Just came back from Active Green & Ross in London and I'm now running steel 15" rims with 195/65R15 snows. The overall diameter is the same, or within a couple percent of, the original 205/55R16 tires.
The rims are listed as an alternate in their catalogue and are for a Corolla. The Green and Ross part number is X42551 and they are hub centric rims, not universal rims. The offset is correct, can't remember exactly what it was.
Makes sense. I looked up part numbers for pads and for rotors and for front wheel bearings and they are the same for the '05 Corolla and the '05 Matrix.
I can't say whether the ride is better or worse. I had worn out 16" summer tires and now I have new Uniroyal snows. Apples and oranges.
Anyhoo, there was no problem getting or finding the rims and 195/65 15 tires are plentiful and cheaper than the 16" tires.
I'm happy.
Cheers
Peter