Nice video thanks, I enjoyed it. Beautiful cars and engaging presentation. The Borg Warner overdrive in the Wolseley does have a switch of sorts, as one is required to firstly push in a dash-mounted lever and then as mentioned, lift off the throttle to engage it. There’s a bit of learning involved in how to operate the BW system but I’ve found it to be a better overdrive than the Laycock de Normanville, with the governor bypassed. The revs drop more with the BW