Missing Something, Bro?

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engine,truck,semi truck,missing engine,missing cabin
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I'm sure what it is... the answer is right in front of me though...

Riding the Short Bus

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bus,school bus,semi truck,short bus,yellow bus
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Or if you're extra special, you can ride the supershort bus!

The New Company Budget Looks Weak

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company budget,semi truck,truck
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From the submitter:

"Our delivery company is in the process of switching owners. This looks very promising..."