The world’s fastest production car, is the Bugatti Chiron ,with a starting price of $2.6 million. The truth is that no one really knows how fast this car can go because the Bugatti Chiron’s 8-liter, quad-turbocharged, 1,500-hp W-16 engine is electronically limited to 261 mph. But it’s probably a good idea to limit the speed of this monster, or it may try to fly.