The only official Testarossa Spider manufactured by the Factory is ZFFTA30B000062897, a car that was provided with an own model digit ("30" versus the regular "17").
Two of the Lorenz & Rankel-conversions are currently offered for sale. German classic car dealer Mirbach is offering #75953 and Mike Wheeler's Rardley Motors offers #67611, a car that was already included in F-Register's database but was missing the coachbuilder that we can add now.
Both cars look identically, livered in Giallo with Nero interior. If you never loved a Testarossa, you will now, by having a look on the elegant and fine manufactured examples.
The third individual Testarossa is a real one off. We all now Bizzarinis as very powerful, loud and agressive cars. Did we ever recognize that Bizzarini did put one of his designs on a Testarossa-chassis? Yes, to be honest, we did, but it's for sale now. Gary Bobileff Motor Cars of San Diego offers the Testarossa chassis ZFFSG17A7J0075001 that was transformed to Bizzarrini BZ 2001 currently.