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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.

GM to make most cars LTE hotspots for 2015

General Motors isn't the first automaker to deliver in-car Internet access, but a proposed plan announced today could make the technology more widespread than any of its competitors have offered. By the 2015 model year, most Chevrolet, Buick, Cadillac and GMC products in the US and Canada will offer 4G LTE mobile broadband access. Initially, GM will just be pairing with AT&T to deliver this service, but additional carriers will be revealed in the future.
Current in-car Wi-Fi hot spots are limited to 3G, but GM says that 4G LTE is 10 times faster than 3G service and will allow for full Internet access, including streaming video for entertainment as well as services like real-time traffic updates and navigation driving directions. There is also no need for a paired smartphone with this new system, which should make it easier to use, and GM and AT&T will also be working together to develop new apps for customers.
Buyers can expect to start seeing 4G LTE in their cars starting next year, and GM is already planning to expand the service to other global markets as well. All of the information from GM's announcement is posted in a press release below.

The CadMad shooting brake Eldorado Brougham-Nomad cross is up for auction

The CadMad custom 1959 Cadillac Eldorado Brougham is the coolest car crossing the block at the Scottsdale Barrett-Jackson auction. All arguments to the contrary are wrong and can be redirected straight to the gallery above. This 16-year project built by Super Rides and commissioned by the late Steve Barton won the Don Ridler Memorial Award at the 2019 Detroit Autorama, which goes to the custom build that shows the best creativity, engineering and quality workmanship. All of those qualities are on full display in this Eldorado Brougham-Nomad mashup. Just so we’re all on the same page, a 1959 Cadillac Eldorado Brougham was no normal Cadillac at the time. The sedanÂ’s exterior design is thanks to Pininfarina, as Cadillac had the Italian design company tweak its styling. It resulted in a much more subdued Cadillac than the rest of Caddy's giant fin-tastic designs of the decade. Only 200 were made over the course of a couple years, and they remain some of the rarest production Cadillacs to this day. The “Fawntana Rose” Cadillac standing before us is a shooting brake interpretation of that famous sedan. It has lost 18 inches in overall length, four inches in width and the rear doors have been completely eliminated. A Chevy Nomad roof was shortened by a couple inches and grafted onto the bodywork. The builders say that every last piece of sheet metal was modified for this build. Still, thereÂ’s still no mistaking it for a Cadillac. The chrome bumpers and lights were left mostly untouched, and the small fins were retained, as well. That Nomad roof was painted in Titanium Silver for contrast, the same silver thatÂ’s used on the new Ford GT. Things only improve when you open the hood. A 632-cubic-inch twin-turbo V8 built by Nelson Racing Engines (NRE) powers the shooting brake. Most of the time (on 91 octane fuel), it produces around 1,000 horsepower and 950 pound-feet of torque. Feed it 112 octane fuel and NRE claims itÂ’s capable of producing upwards of 2,500 horsepower. Yowza. A four-speed automatic transmission and strengthened Corvette transaxle somehow attempts to put the power down to the rear wheels. The seats are reflective of the amount of power this car puts down — 2012 Cadillac CTS-V buckets were used and modified with mauve-colored upholstery. All the trim was hand-painted, including the wood-grain flooring in back and is meant to “mimic the African Wenge and Tigerwood Maple.”  The time and effort that went into this built is truly astounding.