Five cars were torched in an arson attack early on Saturday.
It appears that random cars at St John’s Road Motors in Spalding were targeted at 12.20am.
A BMW 525, Audi A3 and Renault Megane Scenic were all destroyed and a Hyundai Coupe and Ford Mondeo were also damaged.
The car sales site is in St John’s Road and it was closed on Saturday as police carry out investigations.
Anyone with information should call Lincolnshire police on 101, or Crimestoppers, anonymously on 0800 555 111.