As British media report, under the hood of the Bentayga Speed will be a boosted six-liter W12 engine with two turbochargers. Its power will increase from the current 608 hp to 660 hp. The output will increase thanks to a re-tuned engine control unit. Such an engine will work in conjunction with an improved eight-speed automatic transmission.

The power increase will allow the "charged" version to outperform the regular Bentayga in dynamics, which accelerates to 100 km/h in 4.1 seconds and reaches a top speed of 301 km/h.