I remember getting the mail each day after walking home from the schoolbus drop off, back in high school, reaching in and getting that months edition of Cycle World magazine...and reading that whole review soon as I walked in the door, when that XL was the cover story bike.
Looked like both I guess, but more like an 883 to me.
883 Sportster:
The XLX was an ironhead:
Well, not to beat ya up, but there were no 883s in 1983. Yes, it does look somewhat like it 'cause it's a Sportster, but it was exactly like the XLX save the engine top end, exhaust and a few cosmetics. It's all good.
I'd have a hard time believing that a bike like that wouldn't sell well today.