The Model 3 only comes in one red, called Multi-Coat Red, which is also avail on the S and X. It’s more of a bright red, not burgandy
Tesla offered a different red that was a bit more burgandy — called Signature Red. Was only available to “signature” reservation holders on both the X and S. Perhaps you saw a Sig S — the 3 and S are very similar looking... Here’s a link to a pic:
https://teslamotorsclub.com/tmc/medi...t-side.115040/