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Harbor freight has a 1/2" torque wrench with ratchet head that you can get on sale for $20 and it has a blow molded case so it won't get bashed.

I just saw it in an email ad for 9.99 and a 1/2" breaker bar for 8.99 (hurry, offer expires tomorrow).

In my opinion the torque wrench is good enough for tightening lug nuts and the breaker bar is good enough for loosening them and they are cheap.

 

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I think Harbor freight tools have been getting better, a little trickle down from things like Craftsman tools being made in China or wherever.

A lot of them have a warranty just as good as Craftsman so the quality and value lines are starting to cross.

I have one of those breaker bars and so far it looks like its holding up fine.

Lastly I think the Fiesta ST lug nut torque spec is 100 ft-lbs.

 

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If I had a Snap-On torque wrench it would probably live in my tool chest, not my trunk.

The reason why I don't have a good one is that even the best clicker torque wrenches are accurate at the high end of their scale but if you're using the high end even a cheap torque wrench is going to be close.

If your torque wrench has a 150 ft-lb scale, 100 ft-lb is 66% which is not at that 80-100% where accuracy is guaranteed.

I think the only good way to tighten critical fasteners are calibrated single task tools, an electronic strain gauge torque wrench ($$$) or measure bolt stretch.

For me, buying a cheap torque wrench for a single task and using a breaker bar to loosen is the best bang for the buck and probably more accurate than a torque wrenched used for ten different tasks.

If I didn't mind spending $300+ on tools that would always ride along in my trunk, it would probably be a little bit more accurate but I think that's well past the point of diminishing returns.