Damn it! Do we realy need to decide on just one? By far the best of the lot would be the Bosscat if you wanted to run a vintage schumacher as this was the last refinement on the original design and by far the most reliable if you consider the kind of power you want to lay down.
Aside from this the SWB car would possibly be the most desirable for the shelf as it was a handful to drive but also because its the car that started it all. Rereleasing the SWB car would be by far the coolest thing Schumacher could ever do as it would take the company back to its origins.
But for me it would by a tie between the XLS and PROCAT as they are both pre 1990 cars that did exceptionaly well back in the day. The XLS would be my pick of the two simply because of the chrome rims.....yeah Im a sucker for those chrome rims
, what can I say...