Theres only one Vehiclesmuggler I know of and hes in the Dome, next to the Twilight Guardian HQ. Just enter the TG-Sector and use the Navray -> Vehicles.

List: (Ground Vehicles)
TL56 Next ER Wheeler Speedbike V.1
TL59 Next ER Chaincraft V.1
TL67 Next ER Hovertec V.1
TL76 Next HH Wheeler V.2
(Flying Vehicles)
TL70 Scout Glider
TL91 Assault Glider
TL94 Advanced Glider
TL101 Advanced Assault Glider