Tesla is known not only for occasionally failing to meet its own deadlines, but also for making impressive claims regarding its technologies. But it has proven time and again that it is, in fact, making impressive advancements in both EV and autonomous tech. However, when it comes to level five autonomous driving, the highest rating possible, not everyone is buying its claims that it's already able to meet this standard. CarAdvice spoke to GM's director of autonomous vehicle integration, Scott Miller, who clearly wasn't afraid to speak his mind.

"I think he is full of crap. To think you can see everything you need for a level five autonomous (car) with cameras and radar, I don't know how you do that," Miller said. Musk previously stated that he believes level five can be achieved with just cameras, radar and sensors – without a laser-based LIDAR system. Miller, along with many other industry experts, isn't buying that. "To be what an SAE Level 5 full autonomous system is, I don't think he has the content to do that," Miller continued. "The level of technology and knowing what it takes to do the mission, to say you can be a full Level 5 with just cameras and radars, is not physically possible."

The Society of Automotive Engineers (SAE) defines Level 5 autonomy as "full-time performance by an automated driving system of all aspects of the dynamic driving task under all roadway and environmental conditions that can be managed by a human driver." Translation: a complete AI replacement of the human driver. So, is Musk being fully truthful here? Is Miller's comment a bit harsh? Look, no one has an exact answer yet, but if we were to make an educated guess, the truth lies somewhere in between both statements. Musk and crew, simply put, shouldn't be underestimated.