Wrench-O-Rama is an auto repair shop in Dead Rising 3.
It is an auto mechanic shop that can be found throughout Los Perdidos. Both Rhonda and Nick work at the Ingleton shop where Rhonda is also the owner. It's the first Safe House used by Nick, Rhonda and Dick.
There is a Wrench-O-Rama in each district: Ingleton, South Almuda, Sunset Hills and Central City. Visiting all four garages will finish the Greased Lightning PP trial, and will award Nick with 10,000 PP. Nick can also gain access to any vehicles that he's driven or customized from any Wrench-O-Rama location from the vehicle locker.
The blueprint for the Jack in the Box is found at the Ingleton Wrench-O-Rama.