Well, my little trip out to Sebring to check out the HSR Sebring Fall Classic was met with a near total washout. I however, had quite a pleasant surprise in discovering the HSR Cayman Interseries. These cars are very cool and absolutely great looking. Billed as “Back to the Future,” Historic Sportscar Racing Ltd. (HSR), recently announced the Cayman Interseries Challenge featured the Series as a guest group at a number of HSR races in 2009.