Sorry thats not the original Jackie Stewart car in the video. If I'm not mistaken the DT club UK were asked could they supply a yellow LHD GTS, similar to the one Jackie Stewart had originally owned, by the Top Gear production team in 2014. It was for a Racing Legends TV programme and this is the car they supplied.
The programme also featured a famous TV chef called James Martin who is nuts about cars. They did an earlier programme with him about restoring and rebuilding his Boss Mustang.
Sadly it didn't end well. Nobody told Jackie or Martin the car was fitted with a manual switch for the cooling fans and the car overheated in the Italian traffic. It totally cooked the motor. Engine was rebuilt and the car sold shortly after.