The pre-New-Coke can was just red and white. Incidentally, I think it was the first can to use the "Dynamic Ribbon Device."
New Coke added a silver stripe to the ribbon and put silver around the logo. Coke cans have been getting more and more complicated since.
The current can has sliver around the logo script plus a drop shadow, fake sweat beads, a halftone pattern and the ribbon has multiplied and thickened.
Now a new design has surfaced. And it looks very much like the pre-'85 can. Red and white. No printing tricks. Looks great!