Bugatti Chiron prototype just crushed the brand's top speed record, it recorded 304.773 MPH. They did it with a modified Chiron; unchanged gearbox & AWD system, new tires, new exhaust system, added a safety cage and they added 9.8 inches to the vehicle's rear section/belly pan to reduce the top speed drag. The interior only has a single seat, took off its active wing/airbrake and its modified suspension uses a laser-controlled automatic ride height adjustment. Speculation Bugatti will make a long-tail variant for limited production, rumors say it could carry an $4 million price tag!
https://cdn.motor1.com/images/mgl/qN...-speed-run.jpg
https://cdn.motor1.com/images/mgl/QE...-speed-run.jpg