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MIT puts V2V technology on its 2015 Top Ten list

Of all the technologies swimming around the automotive world, it is vehicle-to-vehicle communication that the Massachusetts Institute of Technology has fished out as one of its Ten Breakthrough Technologies of 2015. It joined emerging tech like brain organoids, supercharged photosynthesis, and Project Loon on the list, and got the nod over autonomous driving because, as the MIT Technology Review wrote, V2V communication "is likely to have a far bigger and more immediate effect on road safety." How so? Because actual cars transmitting data like their location, speed, steering angle, and state of braking to one another at least ten times per second provides a greater degree of awareness than sensor readings and algorithms. The US Department of Transportation and the National Highway Traffic Safety Administration have been working for years on standards and a regulatory schedule for introducing V2V to the marketplace, and Cadillac plans to incorporate V2V into at least one of its vehicles by 2017. Since we've begun the year with a number of stories of cars being hacked into, that got us wondering about the security of V2V communications. In a recent piece by our own Pete Bigelow on what motorists should know about getting their cars hacked into, he wrote that although cyber break-ins are extremely difficult, expensive, and time-consuming to do remotely, V2V is "one more conceivable avenue a hacker could use to impact multiple cars at a given time." So we spoke to Wilmington, Massachusetts-based Security Innovation about it. The automotive consultancy company has been working with the DOT since 2003 on V2V technology and the issues around it - namely security and privacy - and its chief scientist, William Whyte, is the technical editor of the Institute of Electrical and Electronics Engineers (IEEE) 1609.2 standard outlining its security protocols. Those protocols are expected to be finalized by the DOT toward the end of this year and then come into effect in 2016, and the company's Aerolink product is the security solution Cadillac will use. Whyte said, "If you hack into a car, V2V is the hardest place to start," and Pete Samson, the general manager of Security Innovation's automotive team, said "There are ten or 12 alternate attack surfaces" around the car that would make much easier targets.

2020 Cadillac CT4 spied completely undisguised for the first time

A few weeks ago, Cadillac gave us our first look at its new small luxury sports sedan in the form of the CT4-V. This was a bit unusual considering the company hadn't shown us the regular one yet, and the reveal is still off in the not-too-distant future. But we were lucky enough to catch a normal 2020 Cadillac CT4 parked at a local gas station completely and totally undisguised. Based on what we know about other recent Cadillacs and their trim and design, this CT4 is probably a Luxury or Premium Luxury trim, since it has plenty of bright chrome and red taillights instead of dark gray ones. The differences from the CT4-V are subtle. The mesh grilles of the V are swapped for a main grille studded with small Cadillac badge shapes and the lower grille has simple slats. The little air intakes by the lower sections of the running lights are smaller than the ones on the V. This car also lacks the V's side skirts and wider canards on the edges of the front bumper. There doesn't appear to be a rear spoiler either. While we've had a good look at the exterior of the CT4, we'll have to wait until the car's full reveal later this year to know what's under the skin. We do know that it will continue to use the Alpha platform shared with the CT5, Camaro and the old ATS and CTS. We suspect the base engine will be the same 2.0-liter turbocharged inline-4 from the CT5, which makes 237 horsepower and 258 pound-feet of torque. Since the CT4-V uses a turbo 4-cylinder that makes 320 horsepower and 369 horsepower, there might not be a V6 option for the regular CT4. The CT5's twin-turbo 3.0-liter V6 makes more power and torque, so that's out, and the old ATS's naturally aspirated V6 made 335 horsepower and 285 pound-feet of torque, which would be uncomfortably close the CT4-V's specs. But we could see a V6 of some sort in an even more potent V iteration of the CT4 later.

2020 Cadillac CT4 revealed in non-V form

We got our first look at the 2020 Cadillac CT4 when its V variant made its debut a few months ago. Now the company is officially showing off the regular CT4 luxury sport sedans. They actually don't look all that different from the V, though - especially the CT4 Sport trim. The Luxury and Premium Luxury trims are distinguished by less aggressive ground effects and a grille studded with chrome pieces shaped like the Cadillac logo. The interior is similar, too, complete with an 8-inch touchscreen. Super Cruise will be made available on the CT4 later in 2020, including on the V model. Really, the big news is the powertrain as V6 engines have been dropped entirely from Cadillac's compact sedan. The base CT4 engine available in Sport or Luxury trim cars is a turbocharged 2.0-liter four-cylinder making 237 horsepower and 258 pound-feet of torque. Coupled to either rear- or all-wheel drive, it features cylinder deactivation and an eight-speed automatic transmission. Unlike in the old ATS, a manual transmission is not available. One notable mechanical difference between trims is the Sport trim gets standard Brembo brakes. Moving up from the 2.0-liter engine is the turbocharged 2.7-liter four-cylinder introduced on the CT4-V. Available on the Premium Luxury trims, its output is downgraded to 309 hp and 348 lb-ft of torque from the CT4-V's output of 325 hp and 380 lb-ft. It too has cylinder deactivation and can be had with either rear- or all-wheel drive. The only transmission offered is a 10-speed automatic. The V model also gets Brembo brake upgrades, and with rear-wheel drive includes Cadillac's magnetically controlled adaptive suspension. Cadillac will start taking orders for the CT4 later this year, but pricing has not been announced yet.