There was also a Clear Pepsi that came out in the 1990’s. Was not available eveyrwhere in the country I seem to recall. Did not taste like normal Pepsi. Not really bad just different.
From what I understood Coke, Pepsi and all the rest slowly changed their formulas from 100% sugar to 100% corn sweetner over a period of years. That way people would not notice a gradual change. Sort of like cooking a live lobster, you dont dump it in boiling hot water, it will try to get out. But if the water is slowly heated it will not know it is getting cooked.
Pepsi inthe UK still is made with sugar as is the stuff from mexico. A friend of mine in KC has bought it for about $1.50 a can from a Mexican store.