Midnightsun
Been here awhile...
I wonder if there's an actual difference in precision or function. Maybe something to do with the ability to display the current pressure? Or if it's just gouging for parts in the "premium market".
I think it is because they actually indicate which tire it is and the pressure compared to pressures only. The locating part is what I think makes them so special and expensive. All cars I have seen either tell you you have a flat or show a low pressure but do not explicitly tell you which one like the Genesis does.
The Canadian Gen 1 did not have TPMS so I do not know how those functioned but since you can get those for $35 each I assume they did not locate the tire either.