No, even with the clutch in, you can't get it into reverse while at speed. Reverse isn't syncro'ed in
any gearbox, so you can't get it in, even with the clutch disengaged. If you did, everything would spin at a gazillion miles per hour backwards, tearing holes in the space-time continuum, and contributing to global warming (and the flat earth, coincidentally). It
technically is possible, but highly improbable, and most definitely inadvisable
In an auto, it's programmed to just not go into reverse above a certain speed. It's perfectly safe to try this out on any auto car (assuming it's less than say 50 years old :razz
, as it is a global safety feature. That said,
I still wouldn't