Previous searches and info on the 'net indicate that ElCaminos and Rancheros are specifically not allowed to be raced as trucks under SCTA. However, I believe that VW Rabbit Pickups, as well as Dodge Rampages, have been classed as mini/mid pickups.
Is there a way to determine the make and model of vehicle used to set previous records? I "think" that the existing H class diesel pickup record was set by a Rabbit pickup (around 105 mph), but have no idea about the existing G class diesel pickup record of 129.xxx mph. Obviously, there were not a lot of small diesel pickups ever brought into the US marketplace, so it's entirely possible that the G record was set by use of an engine swap.
A strong enough VW TDI diesel engine in a Rampage just might have the potential to get close to the existing 129 mph record. As a previous poster noted, VW gasoline engines were used in the earlier Omni/Horizon/024/TC3 vehicles on which the Rampage is based.
Steve.