This is a Ford Sierra demonstrating what a full twinscroll mani and turbine hsing H1E setup can do. Key here also is to notice and listen to the throttle response of the car. Especially at the very end of the video when the guy drives on the road sorta normally while shifting gears.
There is almost very minimal lag. This is really just a testament as to how really well the full TS setup works on the HX40,35,and the H1E turbo.
WATCH and LISTEN: