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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.

Watch Atieva's electric van outrun a BMW i8 and Dodge Viper

A little while back, automotive startup Atieva drag raced its electric van, called Edna, against a Tesla Model S and a Ferrari California in order to compare its performance against known and revered mechanical athletes. Again, the Silicon Valley-based company is putting its prototype up against electrified and conventionally powered performance vehicles on the drag strip. Last time around, Edna, the Mercedes-Benz Vito van equipped with a 900-horsepower, all-wheel-drive powertrain, bested both of its foes. In that showcase, Edna was hitting 60 mph in a little over three seconds. Comparatively, BMW lists the i8's 0-60 time at 4.2 seconds, though Road & Track clocked it at 3.8 seconds, with a quarter-mile time of 12.3 seconds. The Viper does 0-60 in 3.4 seconds. Before you even watch the video above, you can imagine how it will end, as the retuned Atieva Edna rips 0-60 mph in 2.94 seconds. Atieva clocked the quarter mile at 11.3 seconds at 117 mph. It's worth noting that driver skill can have a lot to do with a car's straight-line performance. We've witnessed Viper's elapsing the quarter mile in well under 12 seconds, which means it should be quicker in this test than the i8, if not the Edna. Still, the performance showcased in the video is exceptional. To improve Edna's stats, Atieva says it has used testing data to fine tune its AC induction motors at higher speeds once it got low-speed performance locked in. After testing in the hot California sun, including the race you see above, Atieva drove Edna 90 miles home with range to spare. As for production plans, Atieva will put this powertrain into a sedan slated for sale in 2018. In the meantime, the company will keep testing and tuning its working prototype, and has even invited the public to put their cars up against Edna in future sessions. Related Video: Related Gallery 2015 BMW i8 in Petoskey, MI News Source: Atieva, YouTube: Atieva via Electrek Green Motorsports BMW Dodge Automakers Electric Future Vehicles Videos drag race atieva

Weekly Recap: Ferrari plans to gradually increase production by 2019

Ferrari has long been known for the exclusivity of its performance machines. It's on a different level than Porsche, BMW, and Mercedes. But as it transitions to a new era of independence from Fiat Chrysler, Ferrari is going to get a little less exclusive. It's by design, and it means a subtle, slow ramp-up of production – a move Ferrari believes will ensure its future by meeting growing demand in new markets. The strategy was detailed in SEC documents filed this month as part of the company's pending stock offering. The files reveal Ferrari will gradually increase shipments to about 9,000 units per year by 2019. This is a reversal of Ferrari's 2013 plans to cap production at 7,000 cars annually, which it hit on the nose that year. Ferrari shipments inched up to 7,255 in 2014, though that's down from 2012's record tally of 7,405. Ferrari is a vastly different operation than it was in 2013. Longtime chairman Luca di Montezemolo stepped down last fall, and FCA chief executive Sergio Marchionne has been overseeing the company since then. Its IPO has attracted high levels of attention from enthusiasts and investors. As expected, demand has reportedly outstripped the availability of the stock, which has an estimated offering price of $48 to $52 a share. Speaking of more Ferraris, the company revealed a limited-edition model this week called the F12tdf (shown above). Based on the F12 Berlinetta, the car is a salute to the Tour de France endurance auto race that Ferrari dominated in the 1950s and '60s. The V12 engine's output increases to 769 horsepower, while weight is cut by 243 pounds – allowing for a sprint to 60 mph in 2.9 seconds. Dramatic carbon-fiber elements and a radical redesign of the body panels give the F12 a more dramatic look. It will be limited to 799 units over the life of the car. If this is how Ferrari is increasing production, we're more than okay with the company's new strategy. OTHER NEWS & NOTES Tesla software unlocks Autopilot features Tesla released the latest version of its software for the Model S this week, which allows the all-electric sedan to drive in a semi-autonomous state called Autopilot. Tesla Version 7.0 enables the Model S to maintain lane position, change lanes by touching the turn signal, and manage the car's speed using an advanced, traffic-sensing cruise control. It also has a parallel parking feature, which searches for open spots and then parks your Tesla.