Well there is some news about hotseat gaming. Version 3.33 of GPxPatch introduced support for "Car power team dependent" for hotseat mode.
Previously, if you selected Car power team dependent for hotseat gaming, and the two drivers had different bhp amounts, the bhp figure would carry over from the first player to the next.
So if the first driver was in a Williams, and the second driver was in a Minardi, the Minardi car would get the Williams BHP. Now every car uses the correct BHP figure in hotseat gaming when "Car power team dependent" is selected.
It's only after we've lost everything, that we are free to do anything.