First, I'd like to respond to the answerer below me. If you don't know an answer, why respond to it? Are you simply out to get the points? If so, that is the most pathetically ridiculous waste of time I could possibly imagine.
Sorry about that. About your question, I think the Mustang would win. This is simply based on facts, however. In terms of overall status, I would choose the Celica. New Mustangs just don't do it for me - even the new GTs. And trust me, I am NOT one for Japanese cars.
The truth is, 1990 Celicas nor 2002 Mustangs were the prime of their series'. But if these are the only two cars you are able to buy, take the Celica.
I guess what I'm really trying to get at is that there is nothing special about a 2002 Mustang
. Celicas are great cars.
My solution: buy like....a 1992 Toyota Supra. As far as I'm concerned, these models look just like an old Ferrari Mondial.