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Top torque-to-weight ratios under $100k, $50k and $25k

Horsepower may steal a lot of headlines, but the always-more-complex torque figure is often a critical one for both the workingman and the motoring playboy. The measure of rotational force represents the twist that can liquefy one's tires or haul one's horse trailer. Good stuff.
It follows then, that as with the horsepower-to-weight list that we assembled for you a few months ago, a list of cars that offer the most pound-feet with the fewest pounds to carry, is an interesting one to break down. Sure, there's a big difference in how the torque is applied from a turbocharged six-cylinder in a Swedish luxury sedan and a massive heavy-duty truck's turbo-diesel. But being the car/stat geeks that we are, we think it's kinda neat that those two vehicles rank near each other where torque and weight intersect.
As with the horsepower list, we've given you figures as pounds per every one pound-foot. Again broken down into broad price categories, we've got a mixed bag of 2014 and 2015 models here, too. Every effort has been made to select the most up-to-date prices and specs, and we've also to omitted some '14 cars that won't be re-upped after the ongoing yearly changeover.

Volvo finds a way to turn body panels into batteries [w/video]

One of the problems with designing an electric vehicle is figuring out where to fit the battery pack. Volvo - as a part of a European Union research project - is working on a way around this issue by replacing standard parts with lightweight components that double as batteries on both conventional and plug-in vehicles. The image above shows one such piece on a Volvo S80. While looking like nothing more than a carbon fiber plenum cover, the piece is actually a battery pack that can store and supply enough energy for the car's entire 12-volt power system.
The parts are made by sandwiching super capacitors (which can charge faster than standard batteries) in between layers of carbon fiber. They can then be formed to replace numerous body panels such as the decklid, roof or door panels. Volvo says that the replacing the body panels and batteries with these nano batteries can help reduce the vehicle's weight by as much as 15 percent. It has taken more than three years just to design the batteries, so there's no telling when, or if, we'll ever see this technology used on a production vehicle. Scroll down for a video and press release on Volvo's innovative battery technology.

Volvo demos autonomous self-parking car concept

A number of companies are developing autonomous vehicle technology - Google and Audi come to mind - but Volvo is applying its work in the area to a particular usage case: parking. The Swedish automaker has the technology up and running in a concept vehicle, which it says can be dropped off at the curb by its owner and left to its own devices to enter and navigate a car park, then find and park in an available parking spot. Volvo says the process can even be reversed when the owner is ready to go, with the car leaving the car park on its own to meet its key-holder again at the curb.
The vehicle first interacts with Vehicle 2 Infrastructure technology, which places transmitters in the road itself to inform the car (and driver) if the self-parking service is available. The driver then hops out, activates the Self Parking function on his or her smartphone and then leaves the car to do its work. The car uses sensors, all seemingly hidden from view (an advancement of its own in this field), to autonomously navigate the car park, which includes interacting and adjusting to other cars, people and objects.
The technology used here builds off of Volvo's other work in autonomous vehicle research, namely the Safe Road Trains for the Environment (SARTRE) project in which the company managed to create a train of four cars autonomously following a lead truck at speeds up 56 miles per hour. Volvo says the first application of its autonomous research in a production vehicle will happen at the end of 2014 with some level of autonomous steering available in the next-generation XC90. See the system in action by watching the video below.