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The X-1 is a perfectly crafted combination of power and speed taken to the next level. Its standard transmission with flight-stick grip helps to shift its nitro-fed gears. The V-8, 4.6-liter, three-valve 500-hp engine has a voice of its own or, shall we say, a growl that constantly reminds you of its power. The X-1 drives like a car but handles like a jet with its doors, trunk and hood controlled from the cockpit. And if the speed gets to be too much, there's always the ejection seat.
source: U.S. Air Force
videos: U.S. Air Force
Engine & performance:
Type: V8, normally aspirated
Capacity: 4.6-liter
Power: 500 hp