The R1 is on E85 fuel. It also has an aftermarket cylinder head, forged pistons, full exhaust, and a tune. The 335i has the following:
Custom Top Mount 6466 by John Donovan.
Clutch Masters FX400 6 puc clutch.
Dual CM10 Meth nossels
Gulf Mach 116 race fuel
29 PSI of boost.
These are some seriously fast bikes but this is also a seriously fast 335i. It does very well against the bikes dispatching the CBR1000 surprisingly easily and it is the R1 that puts up a very good fight. People will be quick to point out that the quality of the riders makes a big difference and it certainly does. That said, what happens in the video is what happens and we see a high horsepower car running with liter bikes on the highway and even beating them.
This type of race will usually favor a car as the drag on a bike at higher speeds is greater than the car and it grows geometrically as speeds rise. Yes, cars can bikes can be beat on the highway and this is nothing new.
The 335i does very well. Great video from BimmerBoost member @aflatau