Saltley 'car bomb' kidnap was not gang related
The man was taken to hospital where he received treatment for minor injuries.
Investigations have revealed that the Nissan car, registration number R230 ECX, was sold by its previous owner three weeks ago and police are keen to find out where it was stored until Sunday.
Officers also believe shopkeepers may hold vital clues, particularly camping shop and hardware store owners.
Mr Grant said: "If anyone sold a significant number of these small blue gas canisters used for camping we want to hear from them."
Appealing for witnesses to contact police, he added: "It is an industrial area and fairly isolated but we are sure there will have been people passing by who can help us.
"The man has suffered a frightening ordeal and we will not rest until we have found those responsible."
Anyone with information is urged to call Kings Heath CID on 0845 113 5000.
end
