Hello,
The SA63 in question is a stock SA63 out of the factory. The build plate is the similar (as mine is auto) as my old stock white SA63 with normal gray velour outlined interior seats, black woven cloth inserts and a black dash (Trim code: YP24). Yours is blue (hence Trim code: YP84). All Celica's from my understanding were made in Japan (full imports). No Celica has been produced/assembled here.
It could possibly be a small run of Celicas may have got a custom treatment from AMI before the car was sent to the dealer or as a local dealer fitted 'option'. My SA63 too got the black rear sunshade but not identical to that of the MA61 and did not have flares (like Stefan's RA65). I've seen a few GT-Sport xA6x Celicas around in Victoria with a coupe around the corner from where I used to live. Just never had the opportunity to go and look at them closely as they traded the car up.
I wonder how many people has had their xA6x Celica/Supra since new as they would be able to tell us at the time of purchase what "special" deals or what options where available from the dealer.
I know that there was a gold RA65 with flares which if my memory serves me well was Ex-Ken Morgan son's car which had the fiberglass flares and a rear sunshade as depicticted in your photo.
I hope this helps puts certainty about your car.
Cheers.
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