my mobile garage. it has AC, air compressor, tool box thats attached to cabinetry, microwave, shade awning and a generator. i got it used on ebay. i love it almost as much as my Elise. All my track stuff is in there, and track day comes, i just hook up to the truck, and off i go. its a 24' trailer. towing it can be with most any truck/suv. you need trailer brakes in the tow vehicle(a must), and make sure to get an equalizer hitch and anti sway bar on the hitch as well. longer wheel based vehicles seem to tow easier than short wheelbased. i use a dually, and dont know the trailer is back there, but when i have used my 3/4 ton truck with a shortbed(short wheel base), its a bit of an "adventure". check ebay for trailers, i saved big coin on mine, and had money to buy car parts with instead of loosing it on depreciation of a new trailer.