We compared 3 self-driving systems in cars — and the winner is clear

Cadillac Super Cruise Drive

We've tried Tesla Autopilot, Cadillac Super Cruise, and Mercedes Drive Pilot.
Each has its own pros and cons.
Super Cruise is, in our view, worth the extra cost.

These are early days for self-driving cars. True, we've seen some efforts at near full-autonomy in some experimental cases. Waymo has been at it for years, Uber rolled out its own system in Pittsburgh in 2016, and more recently General Motors' Cruise division showcased its technology for the media.

The emphasis here is experimental as these systems don't play much of a role in everyday consumers' lives.

But over the past year, we have sampled some systems that do. Three that stood out are from Tesla, Cadillac, and Mercedes.

Here's the rundown:

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Tesla Autopilot

Autopilot has been around for longer than the other two technologies. Unlike Cadillac Super Cruise, it doesn't read from detailed maps created by laser-radar GPS. Instead, it uses a suite of cameras, radars, and sensors to create a 360-degree view of the car.

Autopilot can, in theory, be used under many driving conditions, and because it doesn't use Lidar, Tesla believes that it can operate in bad weather better than other systems.

The times I've used it, I've found that it works best on large freeways where traffic is moving at a consistent speed. But it can function on what I would call smaller highways and multi-lane thoroughfares, sort of like very advanced adaptive cruise control.

Currently, the system is what Tesla calls "Enhanced Autopilot" ("Full Self-Driving Capability" is on the horizon and Tesla thinks it has the right software/hardware combo to make it work). Autopilot now costs $5,000 to add when you order a vehicle, but $6,000 as a post-purchase upgrade.

Autopilot periodically prompts you to retake control, flashing a lighted ring around the instrument cluster. If you ignore the warnings, the system will eventually disable itself until you run through a charge cycle (meaning you have to pull into a charging location and plug it in, but you don't have to fully deplete the battery).

Autopilot can change lanes and park itself without having a driver inside. It can also take itself out of a garage, and generally begin to behave like a robot chauffeur. For now, it can be used effectively in stop-go-traffic and on non-highway thoroughfares, so it works like the best adaptive-cruise-control system on the market.

What did we think of Autopilot?

I don't recommend that you do what I'm doing in the photo, which was taken from a video when we first sampled Autopilot on its introduction. In my recent Autopilot drives, I kept my hands on the wheel.

Autopilot is vastly more ambitious that Super Cruise, but in practice, it's still awkward. Then again, it's also learning on the fly, sharing data with Tesla's entire fleet of Autopilot capable vehicles and the mother ship in Northern California.

So, in theory, it should benefit from future network effects and be able to match or surpass Super Cruise's highway talents once Full Self-Driving Capability arrives and gets regulatory approval. The bottom line is that Autopilot could be hands-free in many more environments than Super Cruise.

Cadillac Super Cruise

Super Cruise is a $5,000 extra available on only the CT6, Cadillac's flagship sedan, which can be had for around $70,000 total on the Premium trim level, and it's standard when you step up to the $82,000 Platinum trim.

Super Cruise will only present itself for duty if the following conditions are met: adaptive cruise control is active; the forward collision system is set to alert and brake; the vehicle is on a limited-access freeway; camera or radar sensors are not covered, obstructed, or damaged; the system detects that the driver appears attentive; lane markings are clearly visible, not blurred by weather or other factors; and the "Teen Driver" feature isn't on.

About that "driver appears attentive" part: Super Cruise uses a camera mounted on the steering column to monitor how attentive you're being. It disengages if your eyes wander from the instrument cluster. So although it's possible to engage in risky and distracting behaviors, such as texting or checking Instagram, the system will eventually bust you.

Cadillac and GM have used laser-radar (Lidar) mapping to suss out 130,000 miles of highways, so Super Cruise is starting with a detailed digital landscape. For example, it won't make itself available to the driver if the highway being used isn't up to par, due to construction, for example.

See the rest of the story at Business Insider