Sorry if this doesn't help you but I assume that Toyota sells their crew cab small pick up in "pre-runner" for down under. I'm using the TRD supercharger on the V6 and it has plenty of oats to pull my open duel-axle trailer with my Boss Mustang. In the following pics you can just barely make out the truck
;
Here's a later model;
140,000 miles so far and not one hick-up! I've towed that car north and south east and west and through 2 mountain ranges with no problems at all and it weighs at least 1000 pounds more than a Cobra. That being said I think I'll just stick with it when my BDR gets here.
Just did a little checking, I guess Toyota calls it the Hilux over there.
Steve