Homicide detectives have named a 55-year-old man who is believed to have died in a suspicious car blaze at a reservoir south-west of Geelong last night.

Mark Scherini, from Torquay, was last seen at 10am yesterday at the Geelong seafood business where he worked as a manager. He was due to attend a business meeting an hour later, but did not arrive.

'A good talker' ... Mark Scherini, right.

Last night firefighters discovered a charred body inside Mr Scherini’s burnt-out Mazda in the car park of the Wurdiboluc Reservoir on Cape Otway Road, south-west of Geelong, about 7pm.

Detectives believe the fire was deliberately lit, and are treating the death as suspicious.