Spotted 4 [Bugatti Chiron] test mules back in 2016 at Pike's Peak while undergoing altitude testing. All 4 cars failed the brake temperature checkpoint and were ordered to cool down before proceeding
Crash Test Mule Offers Sneak Peek At Bugatti Veyron Successor
Bugatti Spied Testing Two Veyron Mules on the Nürburgring - Is That a Flux Capacitor? | Carscoops
Bugatti Veyron successor spied inside & out
Bugatti retires Chiron test mule after eight years and over 70,000km of running | Automotive Testing Technology International
Bugatti Chiron Test Mule Spotted in Italy Ahead of Official Unveiling - TechEBlog
Bugatti Veyron Test Mule Seen at the Nurburgring
Bugatti Chiron mule spied | CarExpert
Bugatti Test Mules Caught on Video - TeamSpeed
Bugatti Centodieci development test mule Photo Gallery
Bugatti Veyron Test Mules Spied on Nurburgring, Hint at Hybrid Sucessor
Video: Bugatti Chiron Mule Hits the Nurburgring - GTspirit