If you get hit while riding the Chauffeur mount, you’ll take 10x more damage than what the NPC is normally able to hit. Occurred while playing a very low level (not even level 10 yet) undead monk in Tirisfal Glades. While on the low level character, getting hit for large amounts is consistent when on the Chauffeur, with or without BoA gear.
I tested it in a duel, couldn’t replicate.
I tested it on a higher level character in a different zone, couldn’t replicate.
I tested it on a higher level character in Tirisfal Glades in the current timeline and the enemies attacks did around 75 damage to my character on both the normal and Chauffeur mount, couldn’t replicate.
I tested switching timelines to the past, which resulted in my character taking 1 damage from enemy’s attacks on either mounts, so I couldn’t replicate (however, the enemies were the same enemy/same level in both timelines, yet I could only take 1 damage from the mobs in the past timeline when I got hit vs the current).
Not sure if it’s a timeline issue, old zone issue, low level issue, or maybe all of the above combined. In any event, here’s my bug report