New guy doing some research

Hello,
My name is Greg and I am looking for some information and I wonder
if someone here might be able to help.

I work for a company that builds race trailers and I am currently doing a
remodel on a trailer that was once owned by a man named Letterman.
I think "Michael" Letterman. He owned cars that competed in the Ferrari
Challenge back in the late 90s and early 2000s. If I understand correctly,
he owned cars and would rent them to guys to race.

I am looking for any information about his racing program and what cars and drivers
he might have sponsored..

I appreciate any and all comments or help that you might have.
Thank you.
Greg

 

Thank you.

 

Hi,
I'm still looking for anything I can find out about this race team. Who might
have driven for him, what cars were used. Anything about team history.
even the team name.

I think he was based out of California. The trailer I am working on was delivered
to him in California. He ran 3 cars out of this trailer and had other trailers for spares
and for hospitality. Even if you can point me in another direction to look, that would be
very helpful.
Thank you,
Greg