The United States is home to interstates and highways with plenty of speed limits and restrictions. Over in Europe, they have a thing called the Autobahn, where speed limits are rare and supercars can test their top speeds. Today, uploaded a video of a Koenigsegg Agera R testing its top speed on the Autobahn as it raced against the Porsche 918 Spyder. We don't know how fast the car was going, but a related video from last year was uploaded from the 918's perspective and the description noted speeds of 218 mph. Would you go this fast on the Autobahn? Let us know in the comments below.

Porsche 918 Spyder

  • Horsepower: 887
  • Torque: 944 lb-ft
  • Top Speed: 214 mph (according to Porsche)
  • 0-60 mph: 2.5 seconds

Koenigsegg Agera R

  • Horsepower: 1,140
  • Torque: 885 lb-ft
  • Top Speed: 273 mph (theoretical)
  • 0-62 mph: 2.8 seconds

918 Spyders For Sale

(Note: Attempting to reach speeds this high is a dangerous endeavor and should not be attempted unless on a closed course under professional supervision. Do not attempt to recreate anything seen in the video above. The Editors at duPont REGISTRY do not condone illegal activity on the roads. Be safe, and be smart.)