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How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

Watch the 2019 Autoblog Technology of the Year presentation to Cadillac

Autoblog presented our 2019 Technology of the Year Award to Cadillac at the Detroit Auto Show. Autoblog conducted rigorous testing last fall on the latest automotive technologies, and Cadillac Super Cruise earned top honors, edging out Infiniti's Variable Compression Turbo and Mercedes' EQ technologies, the other two finalists. Super Cruise is a semi-autonomous system that allows for hands-free driving to reduce the driver's workload. Our editors found it easy to use and noted the system simply works as intended. We happily found Cadillac under-promised and over-delivered with Super Cruise, a clever system that truly helps the driver. Super Cruise launched on the CT6 sedan, and Cadillac plans to roll out the feature to other vehicles. Watch the video above as Cadillac President Steve Carlisle receives the 2019 Autoblog Technology of the Year Award from Editor-in-Chief Greg Migliore, with Autoblog GM Adam Morath and the editorial team on hand at the Detroit show. Related Video:

Cadillac Super Cruise priced from $2,500 on the 2021 Escalade

Super Cruise will find its next home in the 2021 Cadillac Escalade. The brand had rolled out Super Cruise three years ago on the CT6 as a $5,000 option for the top two trims, then switched up pricing for 2020 when MSRP increases on the top two trims made the more full-featured Super Cruise standard. Cadillac Society reports that the brand will make the hands-free driving technology an option on all but the base 2021 Escalade. On the Premium Luxury and Sport, the feature will cost $2,500, but requires the $3,650 Driver Assist and Technology Package that bundles adaptive cruise control, air ride adaptive suspension, automatic seat belt tightening and soft-close/cinching doors, enhanced automatic emergency braking and reverse automatic braking, and illuminated front sill plates. This brings the total to $6,150 for the middle two trims. The top Premium Luxury Platinum and Sport Platinum trims include the Driver Assist Package, making Super Cruise a no-fuss $2,500 option. The pricing is the same on the standard model and long-wheelbase ESV trims. Earlier this year, Cadillac announced the improvements its made to the SAE Level 2 autonomous driving system, prime among them being the automatic lane change feature. After the driver flicks the turn stalk to indicate the desired lane, the system will automatically locate an opening in traffic where it can safely change lanes. Numerous small improvements will make life easier for drivers, too, like 70,000 more miles of compatible highways, easier Super Cruise engagement, finer steering and speed control, smoother turns, better control through highway interchanges, and much richer map information. After the Escalade, the CT4 and CT5 sedans, and the XT6 are in line to receive Super Cruise blessings. A couple of years ago there were rumors that the XT4 and XT5 would get Super Cruise, but that's likely a ways off, if it happens. Related Video: