Hi Locked On, everything Dudeman has said so far is correct.
Just to help clarify (I own an import too), most of the information you require can be translated from the factory VIN plate.
Don't worry about the "6F91mportthxa7042" plate, all Japanese domestic market cars simply had the chassis stamped there (in your case it should be SW20-0010853 underneath), the plate would have been added at some stage during compliance.
So to translate the factory VIN plate:
MODEL: SW20 = MR2 2nd Generation
AJMZZ = J for T-Bar Roof
MZZ for GT/GT-S Type
ENGINE: 3S-GTE = Toyota S Series engine, wide-angle valve, electronic fuel injection Turbo
CC: engine displacement in cubic centimetres
Frame No: the frame/chassis number
Color: 202 = Toyota paint code/black
Trans: E153 = transmission used in turbo models for the MR2
The best way to tell the build date for our cars is to look at the frame number, in your case it's SW20-0010853.
The SW20 went through 5 revisions, with the first revision being produced between 12/1989 to 11/1991 and having a frame number between 0000001 and 0059265.
As you can see yours was from the earlier run, further checks show it has a March 1990 build date (reference: http://www.toyodiy.com/parts/q?vin=SW20-0010853).
As the GT-S model was not introduced until December 91, your car should be a GT model before the revision 2 updates.
The leather seats also help identify it as a GT as the GT-S came with cloth seats, however this may not be as useful (for identifying models) as previous owners may have swapped them in.
Hope this helps clarify things.
post edited by Kogashiwa Kai - 2017/04/11 22:20:07