What is 230? Here's your answer...

Scott Benjamin

The 2011 Chevrolet Volt extended-range electric vehicle is expected to achieve a city fuel economy of at least 230 miles per gallon. (© GM Corp.)

Well, I guess the fair thing to do today is answer the mystery question from yesterday's High Speed Stuff post. I'm talking about the unexplained 230 ad campaign that left us with far more questions than it did answers. At the time, just about all anybody could figure out was that it was probably from General Motors (that took some digging, by the way), and that most guesses seemed to center around the 2011 Chevy Volt -- miles per gallon or maybe even the voltage required to charge Chevy's plug-in hybrid? Well, today we have the answer...

According to GM's official press release, the 2011 Chevy Volt "is expected to achieve city fuel economy of at least 230 miles per gallon, based on development testing using a draft EPA federal fuel economy methodology for labeling for plug-in electric vehicles." Unbelievable. I mean, you've got to admit that's a pretty impressive mpg rating, right? In fact, it's the "first mass-produced vehicle to claim more than 100 mpg composite fuel economy." That's an incredible achievement any way you look at it. At any rate, I encourage you to read the full press release and come to your own conclusion.

Tomorrow, we'll take a look at a couple of vehicles that are on the complete opposite end of the spectrum -- two powerful, gas-sucking monsters that practically tear up the road behind them. Although one IS from Chevrolet...but maybe I've said too much?

More related stuff: How Plug-In Hybrid Cars Work 2011 Chevrolet Volt Review and Prices HowStuffWorks Videos - "How the Chevrolet Volt Works" Can a car get 100 miles per gallon? How the 2008 EPA Fuel Economy Ratings Work