This mod allows you to warp into a car's seat by pressing \ (BACKSLASH). It also works with locked cars. You can use this mod to enter and drive a trailer (NOT all trailers are drivable, baggage trailers are the only that can be driven without problems, tugstairs can be driven after installing hydraulics and lifting the suspension, same with utility trailer)

Unintended feature - trailer detach
To detach an attached trailer, just enter it.