But your 9-3t started as a 900 NG with a little facelift. My point is to go to original branding and engineering, not whatever GM was trying to do we 9-whatever.
Sure there weren't "American parts", but there are a fuck ton of GM parts. Opel had been a wholly owned GM subsidiary since 1931.
Also why are you calling it 9-3t? There was never 9-3t and all 9-3s sold in the US had turbo.