Those same Teslas also routinely had issues with not turning quite enough and allowing the vehicle to drift right over to the far edge of the lane at the end of the curve. The last several Teslas I've tested have struggled in this regard, beginning their turns a fraction of a second too late, requiring a sharper steering input that tosses the humans around more. Super Cruise begins turning at the same moment you would if you were steering yourself. Corners are the real trick, especially sharp ones. Doing this in a straight line is relatively easy. An advanced system like Super Cruise is actively steering at all times when engaged to keep the vehicle in the center of the lane. A lesser system will wander around the lane and ping-pong from one side to the other as the computer waits to react until the vehicle is in danger of leaving the lane. Lane centering is the easiest way to evaluate if this technology is any good. Tesla, to its credit, allows its drivers to adjust Autopilot's aggressiveness GM's Super Cruise does not.įor as considerable as those differences are, the end result is fairly similar. GM's approach is slower (painfully at times) and gives the appearance of being less advanced, but it errs heavily on the side of safety by having General Motors engineers do the testing (in a few specific locations) and mapping and giving the customer the final product, which, like Tesla's, can be continually improved through over-the-air software updates. It also places an inordinate amount of trust in Tesla drivers to act as unpaid and untrained development engineers overseeing development testing. This allows for rapid improvements to the Autopilot software, but it also turns every street in America into a real-world laboratory, full of lab rats (everyone not driving a Tesla) who never consented to being part of Tesla's experiment. It also allows Tesla's software to learn faster by having every vehicle sold constantly interacting with as many unpredictable variables on the road as possible and constantly uploading that data to the cloud to be processed. Tesla's makes it appear the technology is more capable than it actually is, able to be used more often in more conditions. These differing approaches have pros and cons.
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