Baron.....a fast way to spend money
I did an engine change on a 56TC a few years back, the engine instalation was basic that of a Duke but without the cabin presurissatuon, the turbo was massive. The story was that the factory where using a Barron arframe to test the duke engine instalation. The marketing people got wind of how fast the test bed was and decided this would give them some sort of bragging rights to have the fastest piston twin on the market. The 56TC has spectacular performance but at an equally spectacular fuel flow.
I think the 58P was probably one step to far, I am told the maintenance costs are greater than a King Air ( but with a smaller Perchace price ). Most people arrived at the conclusion the King air C90 was a better and more cost effective way of flying as the resale value of the King Air is quite good.