I've never kept up with SP very much but that is a simple yet striking image.

In my ignorance I would've guessed the truck frames, fuel tanks and underbody on those units was black. Lots of good detail with the red fuel filler & gauge and carbody latches too.

I've heard of SP "bloody nose" engines and assume those are examples. That scarlet looks pretty blood soaked, hard to imagine them getting closer to the real thing.

Thanks, learning.