Bring on the Night by Don & Jay Davis

"From the critically praised authors of Sins of the Flesh comes a terrifying novel of supernatural suspense. Two serial killers--a vampire and a vampire-hunter--stalk the streets and back alleys of Chicago in a stretch limo, offering immortality to the callously cruel, but enormously wealthy, members of the jet set. Original." (from Amazon.com)

Paperback Info: ISBN 0812511891, TOR Books, 1993