1991 Cadillac Fleetwood Brougham Silver/gray 1-owner 42,000 Super Sharp 5.0 V8 on 2040-cars

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New V6 engines are only the start at Cadillac

Cadillac debuted its new family of V6 engines Friday, but that's not all General Motors' luxury brand has in store for the coming years. The six-cylinder powerplants will certainly help Cadillac in the near term, but they're just two of the many parts of the company's future strategy. GM has invested $12 billion in Cadillac to help the brand grow over the next five years, and the company will launch eight new products between now and 2020. That all starts with the launch of the CT6 flagship later this year – a fullsize luxury sedan we'll see for the first time in New York on March 31. The CT6 will introduce several new features and technologies to the Cadillac range, and with its launch also begins the slow restructuring of Cadillac's model-naming system. The new nomenclature means CT and XT badges for cars and utilities, respectively. Cadillac says that of the eight new vehicles it plans to launch by 2020, five of them will be first-time offerings in market segments where the brand currently does not play. But it's not just about new products – new powertrains are an important part of the Cadillac story, too. After the new V6 engines – a naturally aspirated 3.6-liter and a twin-turbocharged 3.0-liter engine – launch later this year in the 2016 ATS, CTS and CT6, the company says it has a strategy for V8 power – possibly a twin-turbo application – as well as future electrification. Cadillac also says it's working on adding four- and six-cylinder diesel powertrains, though it's unclear which vehicles will make use of those engines. This new six-cylinder engine family is indeed important, with Cadillac's chief engineer, David Leone, calling it the "most advanced V6 in the industry." With 335 horsepower, the 3.6-liter engine is the highest output, naturally aspirated V6 powerplant Cadillac has done – and that's SAE-certified, and on regular fuel. Beyond that, the 3.0-liter mill (pictured at right) marks the first application of GM's active fuel management system on a twin-turbocharged engine. This means that when full power isn't necessary, the TTV6 can run as a 2.0-liter V4 in order to save fuel. New transmissions are also part of the V6 engine story. GM's all-new eight-speed Hydra-Matic 8L45 gearbox will be paired to the 3.6-liter V6, and the 3.0-liter TTV6 will use the company's existing 8L90 transmission that is already found in the Chevrolet Silverado and GMC Sierra pickups (with the 6.2-liter engine).

Cadillac previews upcoming new XT5 crossover [UPDATE]

UPDATE: Cadillac has released another three images, which we've added to the gallery above. Cadillac is gearing up to unveil its new XT5 crossover at the Dubai Motor Show in November. We've already seen what it'll look like - from a couple of angles, anyway - but the all-American luxury automaker has given us another taste of what's to come with a quartet of images released on its official Facebook page. Set to replace the SRX that's now six years old, the all-new XT5 adopts the new design language we've seen on newer Cadillacs of late. That's most particularly emphasized with those vertically integrated LED headlights. The sharply creased styling is also signature Cadillac, as is the egg-crate grille capped by the brand's wreath-less new emblem. The dark brown paint job also looks like it has a deep metallic flake to it, offset by satin brightwork where you might have once expected to see glinting chrome. (Then again, it could just be reflecting a uniform backdrop.) The XT5 is expected to be the first of several new Caddy crossovers to wear the letters XT. A smaller model (likely to be dubbed XT3) is tipped to slot in below, with a larger XT7 to slot in above – but still below the defiantly truck-based Escalade that's not about to go anywhere anytime soon. Sedans will continue to start their nameplates with the letters CT. But after a dozen years, the letters SRX will be retired from the Cadillac lexicon. 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.