The four Mercedes Benz cars and a Pajero were among the 27 cars taken to the garage for repairs, when they were engulfed in an inferno.
The value of the damaged cars has not been established.
Kitwe City Council (KCC) Chief fire officer Stanley Sichivula said the incident occurred around 20:00 hours on Saturday and that firemen managed to rescue 27 vehicles.
Mr Sichivula said one of the workers at Merc-Motors had delayed in calling the fire brigade and that if he had alerted firemen on time, all the vehicles that were burnt in the inferno would have been saved.
Mr Sichivula said the firefighters managed to put off the fire with the help of Mopani Copper Mines (MCM) fire engines and fighters.