In all honesty, why would anybody let anybody go test drive their car if they are not serious about buying it. Im actually guilty of that myself at the dealerships not anybody personal. It's not a problem for me to take them out for a cruise. You got to look at the liability. What if they while driving miss shift and blows something. What if the person was to lose control, get in a car crash or just does something totally unexpected. If it ends up in a bad situation it could be at your expense. Then you as the owner will be out a vehicle, and will have to repair any damages to anything involved. It is RHD any many people have never drivin' anything of that sort unless they owned a mail truck sometime in their lives. In all said and done, better safe then sorry no matter what side the steering wheel is on.