Thats why Toyota recalled thousands of Tundra pickups with their 5.7L V8 for a defective cam shaft. Yea, a camshaft that just snaps. Their build quality might be fantastic for the price, but they're getting a little shady on their motors recently, with the engine sludge and the hints that their build quality might be going down because of their increased production and rapid expansion.
As for the Holden that died, check the fuel pump/filter together. They go at the worst times, and then you're stuck in the middle of nowhere. What you're hearing is the starter, not the alternator. Be wary about taking it to any mechanic, they sometimes jack up the prices if they see you're desperate.