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Submit your questions for Autoblog Podcast #305 LIVE featuring Matt Edmonds of the Tire Rack!

We record Episode #305 of the Autoblog Podcast tonight, and we'll be joined by Matt Edmonds of podcast sponsor The Tire Rack, so drop us your questions and comments via the Q&A module below, especially if they have to do with tires and wheels! Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #305
2014 Chevrolet Silverado

Is the Chevy Camaro Z/28 a Godzilla Slayer at the track?

Godzilla. It's a name that strikes fear in the minds and hearts of giant monsters (Mothra!) worldwide, not to mention a number of automobile manufacturers that produce high-performance coupes... including Chevrolet. The Bowtie-cladded company has one rather obvious model that lines up squarely in the sights of the Nissan GT-R, that being the Corvette.
Interestingly, though, Chevy's halo coupe isn't the vehicle the boys from Motor Trend decided to match up at Barber Motorsports Park against the Japanese Godzilla, opting instead for the brand-new Camaro Z/28. A glance at the spec sheet of the Z/28 clears up any consternation regarding MT's choice - more horsepower for the Nissan, more torque for the Chevy and roughly the same weight means they are on pretty equal ground when it comes to what's under the hood.
The rest of the spec sheet looks to tilt the argument in the GT-R's favor (especially considering that MT's test car is a Track Edition model), as it boasts all-wheel-drive traction, a quick-shifting six-speed dual-clutch transmission and a price tag that's about $40,000 higher than that of the Z/28. Oh, and don't forget the GT-R's legendary computer-controlled reflexes. Does any of that matter with a professional race car driver like Randy Pobst behind the wheel? Scroll down and watch the video to find out.

Is 120 miles just about perfect for EV range?

When it comes to battery-electric vehicles, our friend Brad Berman over at Plug In Cars says 40 miles makes all the difference in the world. That's the approximate difference in single-charge range between the battery-electric version of the Toyota RAV4 and the Nissan Leaf. It's also the difference between the appearance or disappearance of range anxiety. The 50-percent battery increase has zapped any lingering range anxiety, Berman writes. The RAV4 EV possesses a 40-kilowatt-hour pack, compared to the 24-kWh pack in the Leaf. After factoring in differences in size, weight and other issues, that means the compact SUV gets about 120 miles on a single charge in realistic driving conditions, compared to about 80 miles in the Leaf. "The 50 percent increase in battery size from Leaf to RAV has zapped any lingering range anxiety," Berman writes. His observations further feed the notion that drivers need substantial backup juice in order to feel comfortable driving EVs. Late last year, the Union of Concerned Scientists (UCS), along with the Consumers Union estimated that about 42 percent of US households could drive plug-in vehicles with "little or no change" in their driving habits, and that almost 70 percent of US commuters drive fewer than 60 miles per weekday. That would imply that a substantial swath of the country should be comfortable using a car like the Leaf as their daily driver - with first-quarter Leaf sales jumping 46 percent from a year before, more Americans certainly are. Still, the implication here is that EV sales will continue to be on the margins until an automaker steps up battery capabilities to 120 or so miles while keeping the price in the $30,000 range. Think that's a reasonable goal to shoot for?