So, what can we conclude:
Toyota passenger cars use one torque value. Their trucks are varied, like GM's.
GM passenger cars mostly use one torque value except for the cars they didn't make or design, such as the Aveo or the Vibe.
Torque requirements go up as the size of the wheel stud goes up.
Bigger vehicles need bigger wheel studs.
GM makes bigger vehicles than Toyota does, therefore the larger GM trucks for which there is no Toyota counterpart need higher torque values.
This concludes your lesson in how to critically interpret the data you see instead of drawing an erroneous conclusion and posting it on BITOG for everyone to see.