Think of the last time you were cruising down the highway, remember how fast you were going? Now multiply that by 4 or so and that's what it's like to be in the world's fastest street legal production car.

Koenigsegg just put their Agera RS to the test and set an average speed of 277.9 mph on Nevada's Route 160. The first run only hit 272 mph, but the second saw the driver reaching speeds of 284 mph.

Every part on the car is what it comes off the line with.

Read more at Jalopnik.

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