The undead executioner's chariot also points to another feature that hasn't been explored in the series previously: Vehicles. The player's vulnerability in Demon's and Dark Souls was reinforced by the lack of vehicular assistance...Shibuya describes vehicles as something the team wants to implement in Dark Souls II as a new element for players.
To tell the truth, a vast amount of the enemies vulnerability was also due to no vehicular assistance...so...my guess is vehicles are going to be better for mobs than the player. But, forget about my opinion, what do you think about the implementation of vehicles?