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Cadillac tops Tesla in Consumer Reports semi-automated driving test

General Motors' Cadillac outscored Tesla in a new ranking of partially automated driving systems tested by Consumer Reports and released on Thursday. The highly influential nonprofit organization, which tests and rates a variety of consumer products from appliances to vehicles, said it compared Cadillac's Super Cruise and Tesla's Autopilot with similar systems from Nissan and Volvo. Nissan's ProPilot Assist was ranked third and Volvo's Pilot Assist fourth. Consumer Reports said it has been testing partially automated driving systems for several years but elected to conduct a formal study intended for publication, because "we are at a tipping point where they are now going mainstream," according to Jake Fisher, director of auto testing. The organization said its tests, conducted on a private track and on public roads in Connecticut, were designed to measure the systems' ability to automatically control steering and speed in certain situations, while helping drivers pay attention and regain manual control of the vehicle when required. CR noted that any of these systems can increase driving risk if used in inappropriate situations, or if drivers become inattentive or over-reliant on them. While they can help relieve driver stress and fatigue, Consumer Reports said, the partially automated systems are "not intended to be self-driving features." The systems typically use cameras, radar and other sensors, as well as mapping data, to monitor location and traffic conditions and help keep a vehicle centered in the lane at a safe distance behind other cars. Each system has limitations. Cadillac's Super Cruise, for instance, only functions on divided highways that have been mapped by GM. In contrast, Tesla's Autopilot can be used even on small, curvy roads with poor lane markings, but "operates erratically in those situations," Consumer Reports said.The organization tested Super Cruise on the Cadillac CT6; Autopilot on the Tesla Model 3, Model X and Model S; ProPilot Assist on the Nissan Leaf and Infiniti QX50; and Pilot Assist on the Volvo XC40 and XC60. Consumer Reports said Cadillac's Super Cruise did "the best job of balancing high-tech capabilities with ensuring the car is operated safely and the driver is paying attention." Tesla's Autopilot was cited for its capability and ease of use, while Nissan's ProPilot Assist did a better job than Autopilot or Volvo's Pilot Assist in keeping drivers engaged.

Nissan NV400 becomes Japan's first electric ambulance

Consumer passenger cars aren't the only vehicles undergoing electric transformations. We've seen the introduction of early electric fire trucks, and now Japan is getting its first electric ambulance. It's a Nissan NV400, and it will be used by the Tokyo Fire Department at the Ikebukuro station. Though badged as a Nissan, the NV400 is at its heart a Renault Master Z.E. electric van. The powertrain is the same as the French van with a 33-kilowatt-hour battery (7 kWhs less than the base Nissan Leaf) and a 55-kW motor driving the front wheels. That translates to 74 horsepower and 162 pound-feet of torque. That doesn't sound like much, but in as dense a city as Tokyo, it's not likely the NV400 will be able to reach high speeds at all, even if it had a Hellcat engine. There are a couple of unique additions to the van to enhance its ambulance capability. One is the inclusion of a separate 8-kWh lithium-ion battery that can operate all the equipment on board for long periods of time without eating into the ambulance's range. It can even be used like a generator to provide power to external emergency equipment. Then there's the stretcher, which Nissan vaguely says is electrified to make it easier to use by the medical personnel. We presume the stretcher has an electric motor to make it easier to push around. Since neither the NV400 nor its Renault counterpart is sold here, we're not expecting to see one of these ambulances in the U.S. any time soon. But electric versions of local emergency vehicles seem like a good idea, since range wouldn't be an issue, and the torque would be useful in large vehicles. Ford is readying an electric full-size Transit, which is offered in America in gas versions. Perhaps we could see some electric Ford ambulances in the near future. Related Video:

Road & Track names its 2013 Performance Car of the Year

Road & Track recently staged its first annual Performance Car of the Year test, pitting 13 new and updated performance cars against each other on track, then graduating the top six to a road test before picking a winner. Additionally, the magazine staff picked the best automobiles of the year in eight categories.
But first, let's cover the PCotY segment. Here's the list of cars brought to the comparison test: Audi R8 V10 Plus; BMW 435i; BMW M6 Competition Package; Chevrolet Corvette Stingray Z51; Ferrari F12 Berlinetta; Ford Fiesta ST; Jaguar F-Type V8 S; Jaguar XFR-S; Mercedes-Benz E63 AMG S-Model Wagon; Mercedes-Benz SLS AMG Black Series; Mini John Cooper Works GP; Nissan GT-R Track Edition; and Porsche Cayman S.
To find out the results of the comparison, head over to Road & Track's website or check the press release below, where you'll also find the magazine's top-rated vehicles in eight categories. Want more? Head over to the 2013 PCotY hub. But before you do that, take a stab at guessing the winner of PCotY (we'll give you one hint: it isn't a Porsche).