For the past three years we have been attending a gimmick rally in Santa Fe in September. However, last year it was announced that Jaguar was taking over sponsorship and therefore the rally would be for Jags only. Don't know if this is the event you are refering to though.
Forgot to add that this event was for vintage and special interest cars plus Jags. Cost me the price of a '66 Mustang Fastback to enter.:+