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Lots of factors go into determining how sticky a drag-racing track will be. But high on the list is a compound meant to improve each racer's traction.

Think of it as jumper cables for the electric age - except it's about the size of a refrigerator and costs around $21,000.

Restored 1950s collector cars are hard to come by, and if you do find one, it will likely cost a pretty penny. Here are the most valuable, according to Hagerty.

Coolant is an essential liquid for internal combustion engines, but it doesn't last forever. Here's how long an open bottle will remain fresh.

A triangular engine with 18 cylinders? Surely that's an entry for the Odd Machines Hall of Fame. But it worked ... though it never found a place in cars.