[crexcrex]

Firstly, metrompg dosen't know how to read, in a nutshell i stated that you can arrive at your own conclusions by experimentation, i do not endorse the use of Airtabs which is a knockoff from citroen.

Please note that the increase in coasting distance was not due to the use of Vortex generators but to the reduction of the CRX weight, i do agree that there MAY be benefits truck trailers and possibly long wheel base vehicles, Rv's and towed trailers. I certainly would weigh the pro's and cons before you purchase one single Airtab.
Unlike Metrompg we do not all drive Metro's there are some of us who drive vans trucks etc related to buisness. I have not seen a Metro hauling commercial trailers.
Bestof luck re mods.