WE DRIVE THE FASTEST CAR ON THE PLANET; Exclusive third or fourth test! Fat torque! Great grip! Eco-friendly solar power!(News)

Byline: MARK VAUGHN Sure, headlines can be misleading. It is the fastest car on the planet. It just isn't this planet. We drove the Mars Rover Opportunity. Okay, again, "drove'' is a bit of an exaggeration. We drove it as much as any of the eight real Rover drivers at the Jet Propulsion Laboratory in Pasadena, California can drive it.

More or less. You don't strap into it like a sand buggy, fire up an air-cooled Volkswagen flat four and do a wheelie. You take a look at the latest batch of pictures, use your computer mouse to plant some waypoint flags between the rocks in ...

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