Here's why Top Speed records are completely useless
When performing these top-speed races, there is often a gray area to what constitutes a "production car." To break the 300 mph barrier, Bugatti had to lower and extend the car, reinforce the tires, extend the rear tubes, replace the air brake and set the W16 engine to produce 1,578 horsepower. In other words, the record car is not something like the Chiron you bring home from the dealership. You may think this should disqualify Bugatti from the record, but this practice is nothing new.
Even the McLaren F1, which held the record for decades, required modifications to reach over 240 mph. The plate-adjusting car had its sixth gear limit increased from 7,500 to 8,300 rpm to reach top speed. So even if you buy an original McLaren F1[ads1], it won't be able to hit 240 mph even if you tried. And like Chiron, the F1 hit its top speed at Ehra-Lessien, so good luck finding somewhere else to hit the top speed of the car.
