Two Speed Motor

Did anyone ever heard about a two speed motor but with the ratio high speed versus low speed equals to 4 and the electrical connections equal to usual dahlander motor model. (delta / double wye or wye / double wye)

I'm not talking about a normal dahlander 8/4 poles or 4/2 poles or 12/6 poles etc.

But the high speed has to be four times the low speed.

If it exist, does this motor has an advantage over a two speed motor with separated windings.

I'm thinking about this issue because when the speed ratio is one to two, you mostly see a dahlander motor in stead of a motor with separated windings.

I know it is older technologie, nowdays we use VFD, but still curious to know it.