See Photos of Chevy's Colorado ZR2 Bison Pickup Prototype

The top edge of the hood is about two inches higher off the deck than the standard ZR2.

The rear hydraulic rear bump stop that we saw on the ZR2 Bison is not present on a regular ZR2.

We can't tell it the track width is technically wider on the ZR2 Bison, but the wider LT315 tires do broaden the stance from one outer sidewall to the other.

Imagine our faces when the Chevrolet Performance engineering team rolled this out for us to see, and it was pretty easy to guess what it was without them coming out and saying it.

The steel skidplates on the Chevrolet Colorado ZR2 Bison Prototype appear to differ from the standard ZR2's aluminum ones, but we're not sure if this is the production specification.

We don't think the flanks of the Chevrolet Colorado ZR2 Bison Prototype are much different under the tape, but the front and rear diapers are likely hiding unique front grille and rear bumper styling.

The front hydraulic bump stop points straight down toward the lower control arm like a stalactite.

When we said we'd show you all angles, we meant all angles.

These 35-inch tires are technically sized at LT315/70R17, and they are mounted on beadlock-capable wheels.

This label on the rear shock absorber gives away this prototype's true identity.

Like the regular ZR2, the Chevrolet Colorado ZR2 Bison Prototype has its rear dampers positioned outboard of the leaf springs, and this makes the lower shock mounts less vulnerable to impact when straddling rocks.

Don't read too much into the interior of the Chevrolet Colorado ZR2 Bison Prototype, because these hand-me-down Z71 seats are not the correct ones.

The Chevrolet Colorado ZR2 Bison Prototype looks more imposing than a regular ZR2 because it stands 2 inches taller and rides on 35-inch tires instead of 33-inch tires.

This is not what the dash trim of Chevrolet Colorado ZR2 Bison will ultimately look like, because we're pretty sure this prototype development truck was built up from a regular ZR2.

The Chevrolet Colorado ZR2 Bison Prototype had its spare mounted in the bed, not underneath. This could be a sign that the 35-inch tire is too big to fit here, but it could also be the case that the mounting solution has not been applied to this suspension development truck.