2004 Cadillac Xlr Base Convertible 2-door 4.6l on 2040-cars

Auto blog

Autoweek divulges details on Presidential limo

Ever since the latest presidential limousine, also known as The Beast, debuted in 2009, we've wondered what's underneath that black Cadillac body. We already know a few details, like the fact it isn't a Cadillac at all, but a very heavy duty truck chassis from General Motors with a body that resembles a super-sized Caddy. Autoweek, however, has managed to extract new details from veteran Secret Service agents about the closely guarded presidential limo. Their methods, of course, are classified.
Designed to be a rolling office, bunker and escape pod all in one, the current presidential limo is far different from previous presidential state cars, which were heavily modified production vehicles. As we would expect, The Beast uses thick, military-grade body armor (eight inches on the doors), an armored fuel tank, special run-flat tires with Kevlar lining, an encrypted satellite phone, a fully sealed cabin with its own oxygen supply and a trunk full of weapons and medical equipment that includes a supply of the President's blood type (in case the car gets cut off from the ambulance that's always present in the President's motorcade).
The Beast also comes with a Halon fire-suppression system, night vision and is powered by a V8 engine, which we already knew runs on gas and not diesel, that returns an EPA-unfriendly estimated 3.7 miles per gallon. The Secret Service operates a fleet of 12 limos and each Beast costs $1.5 million. Lastly, AW estimates that the 18-foot-long state car weighs 15,000 pounds, and each Secret Service agent that drives the car must be specially trained to maneuver such a massive vehicle.

Cadillac XT6 SUV will be revealed in Detroit in January

Cadillac will hold an event on Jan. 13 on the eve of the Detroit Auto Show to reveal its long-awaited new XT6 three-row crossover, Automotive News reports. The XT6 is seen as a critical product for Cadillac, which has been caught flatfooted with a lineup heavy on sedans amid the boom in crossovers and SUVs. It'll slot between the midsize XT5 crossover, and the full-size Escalade luxury SUV. Cadillac recently started selling the smaller XT4 crossover as well. The XT6 is expected to arrive in showrooms around mid-2019. We've seen several spy shots of the XT6 cloaked in heavy camouflage, including some views of the uncovered dashboard and console layout earlier this week that showed a wide, sweeping dash and elements seemingly borrowed from the CT6 sedan. Cadillac is also reportedly working on a "master brand" campaign strategy expected to be unveiled early next year, with plans to make Cadillac GM's technology leader for self-driving and electric-vehicle systems, with plans to bring Super Cruise to its entire lineup. The GM luxury brand plans to launch a new or redesigned vehicle every six months for the next three years. Related Video:

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.