2009 Audi S8 Base Sedan 4-door 5.2l on 2040-cars

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Wagons make a bit of a comeback, with new models, sales on the rise

Consider this an official invitation to hop on the wagon bandwagon. There's still tons of room because, well, it's a wagon (and market share is still extremely small). But according to new data, the segment is growing. According to a report from Bloomberg, using data from Edmunds.com, roughly 211,600 Americans purchased wagons in 2018. That is technically down from the 237,600 sold in 2017, but wagon sales in the U.S. are up 29 percent from where they were five years ago. It's also the third year in a row that wagon sales broke the 200,000 mark. The sales trends have been somewhat representative of the availability of wagons. New models have debuted during the past 5 years and therefore offer more opportunity at more brands to buy wagons. In addition to more modest cars such as the Volkswagen Golf Sportwagen, several luxury and performance brands are offering wagons today, such as Mercedes-Benz, Audi, Porsche, Jaguar, Volvo and Buick. (Bloomberg's headlines make the point that "crossovers are for the Kardashians," and wagons are just, well, classier.) This uptick in brand-name availability, as well as extremely well-executed design on most of the wagons currently available, has helped increase the segment's desirability. That, and its ability to better accomplish the same tasks at hand while standing out from the crossover and SUV crowd. Still, the posted numbers represent a small fraction of the total vehicles sold. According to the data, wagons only held a 1.4 percent market share in 2017, the segment's best recent year. Wagons hold a steadfast place in America's past, and they're writing an interesting new story. With the downturn in traditional cars, they may continue to create an unexpected narrative. Related Video: News Source: Bloomberg, Edmunds Audi BMW Buick Volkswagen Volvo Wagon station wagon

2015 Audi A3 Sportback E-Tron

A little more than a year ago, I drove an Audi A3 E-Tron prototype - an early concept electric vehicle built on the outgoing second-generation A3 platform. While I was impressed with the technology, its 3,800-pound weight, 10-second 0-60 time and 90-mile range will likely put it only mid-pack, at best, among its future competitive set. But Audi promised bigger and better things would come.
I didn't have to wait long. Immediately following the Los Angeles Auto Show, Audi asked me come drive its all-new successor built on the company's third-generation A3 chassis. Compared to last year's model, the new plug-in hybrid electric vehicle (PHEV) boasts a lighter curb weight, quicker acceleration and six times the range. Calling it improved is an understatement. Best of all, it's heading to production.
Technically speaking, the 2015 Audi A3 Sportback E-Tron is a parallel hybrid, meaning its electric motor is sandwiched between a combustion engine and an automatic transmission - either, or both, is capable of powering the front wheels. The gasoline-powered engine is a direct-injected and turbocharged 1.4-liter four-cylinder, rated at 150 horsepower. The transmission is a six-speed dual-clutch gearbox. A 75-kW electric motor sits between the two. Water is used to cool the gasoline engine, the electric motor and the battery pack - there are three independent closed loops.

Audi is working on a suspension that gets power from bumpy roads

Regenerative brakes aren't new. They're on virtually every hybrid and EV, and they're even starting to pop up on traditional gas-powered cars, like with the i-ELOOP-equipped Mazda6. But even with these systems, cars can get more efficient, and Audi thinks it found yet another source of wasted energy. The source? The suspension. The idea is to turn the kinetic energy that goes into the dampers into usable energy instead of as waste heat. Audi isn't the first auto company to come up with regenerative suspension – nearly three years ago, ZF introduced its GenShock technology, which used a valve attached to traditional, oil-filled hydraulic shocks to recapture kinetic energy from movement caused by bumps in the road. Audi's prototype technology, which it calls eROT, replaces traditional dampers with horizontally oriented electromechanical rotary dampers. eROT is apparently short for electromechanical rotary damper. Neat. In testing, eROT recovered an average of 100 to 150 watts on a typical German road, three watts from a fresh piece of pavement, and 613 watts on a rough stretch of tarmac (wattage is calculated as power over time, so this is actually the rate at which the system harvests energy). The dampers channel that energy to a tiny, 0.5-kWh, 48-volt battery. The prototype is claimed to cut CO2 emissions by three grams per kilometer (4.8 grams per mile), while the company believes a future production version could save up to 0.7 liters of fuel per 100 kilometers of driving. Converting the savings to American miles per gallon isn't easy, so we'll use a practical example. In the US, the Q7's supercharged 3.0-liter V6 returns a combined rating of 21 miles per gallon, which works out to 11.2 liters per 100 kilometers. Apply eROT's 0.7L/100km savings, and the Q7's economy would improve to 10.5L/100km, or 22.4 mpg, a 1.4-mpg improvement. That's not huge, but because math, 0.7L/100km is more dramatic on a more fuel efficient vehicle – taking an A3's 27-mpg combined rating and adding eROT would drive efficiency up 2.4 mpg, for example. There are a few other big benefits beyond fuel and emissions savings – Audi claims eROT provides a more comfortable ride than traditional active suspensions, because engineers can tune the compression and rebound strokes independently of each other. Beyond that, the horizontally oriented rear suspension geometry means more cargo space, since the dampers don't poke up into the cabin like they normally do.