Many of my best BBQ experiences have been at roadside "trailers". A current favorite off I75 in Ocala (near Northern Tool & Gander Mountain) is a large comp trailer with a walkup window, a separate metal shed to cover a rotisserie cooker, a few picnic tables with umbrella type covers. Parking for maybe 10 vehicles. Always slammed for lunch.
Weber 26.75 OTG w/CI grates & SJ/WSM Mini
Home built 24"x72" reverse flow stick burner trailer with 18"x40" grill w/CI grates and upright SS gas oven/smoker.
Home built 48" fire pit with a 30"x30" Santa Maria style ranch grill.
Home built lump charcoal retort, iGrill & a bunch of other cooking toys.