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Next Audi RS4 to get an electric turbo?

We don't yet know if the next Audi RS4 will come to the US, but whoever gets it could find an electric turbocharger under the hood according to a report in Auto Express. The 4.2-liter V8 that has served for two RS4 generations is retiring from the line, replaced by a twin-turbocharged version of the supercharged 3.0-liter V6 used in the S4. But instead of using two sequential turbochargers - a smaller one to eliminate lag while a larger, more powerful turbo spools up - batteries charged by brake regeneration could power a first-stage electric turbo. The idea hasn't been publicly appointed for a particular model, as Audi's technical chief Ulrich Hackerberg has said that due to expense, that kind of setup "would only be used be used on the very top end models." Since the technology cuts down on the use of exhaust gases, it would also also help in markets like Europe where CO2 emissions are a factor. No matter whether it benefits from all conventional or some electric boost, the horsepower number for the twin-turbo V6 will be more than 420 hp but less than 503 hp, the rating of the V8-powered Mercedes-Benz C63 AMG. Auto Express believes Audi will want to maintain the power gap between the 333-hp S4 and previous, 444-hp RS4. With Hackenberg saying the new S4 will make more than 350 hp, that gets the coming RS4 up to at least 461, but AE figures it "could deliver as much as 480 hp." We'll find out sometime after the S4 launches next year.

Adam Carolla is world's the least helpful test drive co-pilot

If you were going to test drive a new car, who would you want to take with you? Your spouse? A friend? Maybe an automotive journalist? Well take it from us: there's one of us riding shotgun just about every time we go to drive anything, and we're not all we're cracked up to be.
How about a celebrity comedian? Well, that largely depends on which comedian we're talking about here. Some - say, Jerry Seinfeld or Jay Leno, for example - might be more helpful than others, being more or less schooled in the finer points of the modern automobile. Adam Carolla might seem like he belongs on that list too, but in this latest video for a friends at Edmunds.com, the one-time host of The Car Show on Speed TV seems bent on being as comedically intrusive as possible. Which may be funny, but helpful? Not so much. See what we mean in the video below, and the next time you go to test drive a new car, you just might find the world's most popular podcast host climbing in with you.

MTM Audi RS6 Clubsport might be overkill for grocery shopping

As automotive journalists, we're biologically wired to love station wagons. We really don't have a choice. And while we prefer brown, diesel-powered, manual-transmissioned long-roofs, we suppose a 750-horsepower Audi RS6 Avant would be just dandy. This is the MTM RS6 Clubsport, and as we mentioned, it's very powerful. That's thanks to a modified version of Audi's critically acclaimed 4.0-liter, twin-turbocharged V8. While 750 hp out of just 4.0 liters is impressive, 697 pound-feet of torque is an equally big accomplishment. And if that's not enough, MTM has managed to shave nearly 200 pounds of body fat from the big wagon. Needless to say, it's very, very fast. MTM has displayed a degree of aesthetic restraint, eschewing the gaudy body kit favored by some other tuners and simply opting for a questionable paint job. The 21-inch wheels look good, although with the smattering of rubber around them, we wouldn't bet on a comfortable ride. As for the cabin, well, MTM got a bit out of hand. It's very, very orange. The seats are essentially carbon-fiber shells lined with bits of orange, leather-wrapped padding here and there. Orange, quilted-leather in the door panels, center armrest and on cushions on the side of the center console – a nice touch we wish more automakers would add to their performance cars – contrasts nicely with the black plastics and carbon fiber found on the rest of the dash and center console. That said, we aren't crazy about space for passengers, thanks to the large cage that's there to boost structural stiffness. We have a full gallery of photos of the MTM RS6 Clubsport direct from Geneva. Trust us, you'll want to have a look at this one. Related Video: