Does driving more slowly save you fuel? Watch as Kari, Grant and Tory go in circles -- literally -- to find out.

Adam and Jamie discuss their fears of technology in the 21st century.

See his freak fly when all Tory Belleci has for company during a long drive is ... Buster.

Adam explains what made him go "AHHHHH!!!!!" during the testing of this scene from Headhunters, while Jamie laments "turning something out that was that unprofessional and ... globby."

Sit with Adam in the cockpit as he drives a truck into a stationary car at 50 mph (and see why Jamie says, "That's just ... awful.").

See in glorious slow motion Jamie and Adam drive a truck 50 mph into a stationary car. (And yes, it was freaky for them.)

See what happens when a truck-driving Adam collides with a car at 50 mph, which explains his "My sphincter tightened!" comment.

Kari, Grant and Tory discuss the pitfalls of driving erratically on a non-closed course; plus, find out how you compare with the MythBusters when it comes to deciding it's time to get gas.

Only Adam Savage could turn a block of foam into three beautiful hands in less time than it takes to toast a piece of bread.

While Adam and Jamie don't always get along, they are excellent collaborators. See what happens when the driver's not ACTUALLY in the driver's seat.

Before deploying your cat-deterrent remedies, Grant and Tory do a control test to see where kitties will ... er, "go about their business."

Could a human really outrun a race car?

Kari, Tory and Grant answer fan questions about the Indy Car Special.

Tory suits up for the race track to see if it is possible to lose 10 pounds in one high-speed race.

Relying on sling-shot acceleration, Adam builds a small-scale of the manhole-cover speed test. But is it conclusive?

Adam and Jamie answer fan questions about the Indy Car Special.