*update* went and looked, my car has the same 2.0 in the "group type" serial number. However after decoding the VIN, the car does in fact have a 1.8L motor in it. I will ask my dealer if they can decode what this serial number that hold 2.0 means.
I just mailed off a package of UPC codes from cereal box tops. As soon as my super-secret Hyundai decoder ring arrives, I'll decipher that nonsense for you. It probably reads: "Buy Another Hyundai GT." Sounds familiar, doesn't it!