"all guts" meaning in this sentence

This is spoken by a man describing a certain brand of a car. He said, "Pretty straightforward apple pie car, all guts."

What does "all guts" mean in this sentence?

And the following sentence starts with "Guts that, in part, come from a multi-generational work-force."

Is the second "guts" different from the first one?

Please help me.

• "Pretty straightforward apple pie car, all guts."*

guts plural : the inner essential parts “the guts of a car“

From Merriam-Webster, definition 2.

As @Bitter dreggs says, an engine on wheels.

Thus, no comfort or amenities like leather seats, genuine wood dashboard, high-end audio system, auto-connect to cell phone.