Juan Pablo Montoya set the F1 top speed record at 372.6km/h during the 2005 Italian Grand Prix. Valtteri Bottas's unofficial record of 378km/h in 2016 was claimed by Williams. Surprisingly, a 2006 Honda holds the official record at 397.360km/h, achieved at the Bonneville Salt Flats by Alan van der Merwe. The specially modified Honda RA106 featured an unrestricted V10 engine, a stability fin instead of the rear wing, and custom tires. Despite a goal of 400km/h, it fell slightly short, but testing reached 413.205km/h on one run. Unfortunately, the return run couldn't replicate the speed, missing an opportunity for an even faster record.