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Watch how Corvette Racing's new collision-avoidance radar system works

When it comes to technology used in racecars, we generally expect it to trickle down to production cars, not the other way around. Well, Pratt & Miller has developed a new rear-facing radar that operates in a similar fashion to what we're used to in modern blind spot detection systems, only it is also capable of tracking cars as they approach and relaying vital information to the driver via a large display screen.
The innovative radar system debuted at last weekend's 12 Hours of Sebring for Corvette Racing, and this system makes perfect sense for endurance races like this since the cars sometimes have to drive through the night and in poor weather conditions.
The radar can detect cars even with poor visibility, and uses easy-to-distinguish symbols for the driver to identify.

Best and Worst GM Cars

Oh yes, because we just love receiving angry letters from devoted Pontiac Grand Am enthusiasts, we have decided to go there. Based on a heated group Slack conversation, the topic came up about the best and worst GM cars. First of all time, and then those currently on sale, and then just mostly a rambling discussion of Oldsmobiles our parents and grandparents owned (or engineered). Eventually, three of us made the video above. Like it? Maybe we can make more. Many awesome GM cars are definitely going unmentioned here, so please let us know your bests and worsts in the comments below. Mostly, it's important to note that this post largely exists as a vehicle for delivering the above video that dives far deeper into GM's greatest hits and biggest flops, specifically those from the 1980s and 1990s. What you'll find below is a collection of our editors identifying a best current and best-of-all-time choice, plus a worst current and worst-of-all-time choice. Comprehensive it is not, but again, comments. -Senior Editor James Riswick Best Current GM Vehicle Chevrolet Corvette We were flying by the seats of our pants a bit in this first outing and my notes were similarly extemporaneous. When it came time to tie it all together on camera, I failed spectacularly. Thank the maker for text, because this gives me the opportunity to perhaps slightly better explain my convoluted reasoning. I chose the C8 Corvette because it's simply overwhelmingly good, and it's merely the baseline from which this generation of Corvette will be expanded.  While the Cadillac CT5-V Blackwing (more on that in a minute) is an amazing snapshot of GM's current performance standing and its little sibling so enraptured me that I went out and bought one, their existence is fleeting. Corvette will live on; forced-induction Cadillac sport sedans, not so much. So while all three are amazing machines when viewed in a vacuum, the Corvette stands above them as both a reflection of GM's current performance credentials and a signpost of what is to come. So, given the choice between the C8 and the 5V-Blackwing right now, I'd choose the C8. In 10 years, when the Blackwing is no longer in production and Corvette is in its 9th generation? Well, that might be a different story. Now, just pretend I said something even remotely that coherent when we get to the part of the video where I try to make an argument for the 5-V Blackwing as best GM car I've ever driven. Or just laugh at me while I ramble incoherently.

Sunday Drive: Taking a gaze into the automotive crystal ball

Mankind has long been fascinated by the future. So it makes sense that this past week's top stories were all about cars, trucks, and SUVs that won't be hitting the market until the 2019 model year. And right at the top of the list is the Ram 1500. We've come to know Ram as the truck maker that styles its pickups with cues cribbed from big rigs, but that look has slowly evolved over time into something uniquely its own. The next Ram 1500 continues this trend, with a newly refined look that we can't wait to see in person. Up next is the 2019 Chevy Silverado. Pickup trucks have been, continue to be, and will remain the best-selling vehicles in America. And General Motors is a leader in the field, with two distinct offerings with which to entice buyers, one from the bread-and-butter Chevrolet brand and one wearing the slightly more upscale GMC badge. The Chevy looks to get LED lighting elements for 2019, which ought to keep the truck from looking dated when compared to the Ford F-150 and the previously mentioned Ram 1500. From there we move past pickup trucks and into SUVs and sedans. The 2019 Jeep Cherokee looks to get toned down a bit with its next refresh, and the '19 BMW 3 Series continues its slow evolutionary journey at the top of its aspirational sales pedestal. Finally, spy shots give way to official production reveals for the 2019 Audi A7 and Polestar 1. This pair of European luxury cars won't compete with one another – one is a rakish hatchback and the other a sports coupe – any further than for the eyeballs of our readers, but both proved popular enough to merit inclusion in our weekly roundup. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. 2019 Ram 1500 spotted without the classic crosshairs 2019 Chevy Silverado spied with new LED accents 2019 Jeep Cherokee reveals a much more normal face 2019 BMW 3 Series spy shots reveal production lights, new interior details 2019 Audi A7 revealed: More torque, refined styling Polestar 1 First Look | The 600 horsepower hybrid Scandinavian Green Audi BMW Chevrolet Jeep RAM Volvo Truck Hatchback SUV Future Vehicles Hybrid Luxury Performance Sedan sunday drive polestar 1