I only picked up part of the set, and there are three more vehicles including Mutt Williams on his motorbike, the swamp cutter vehicle, and the Area 51 rocket sled. These are largely more detailed than the Star Wars vehicles in the Titanium series. Better yet, many of the IJ vehicles fwork well with existing scales between 1:32 and 1:144. Here's a few detailed comparison shots for those interested:
Indy and Henry Jones Sr on bike. Both figures are removable & are about 1:35-1:32 scale. The FOV 1:32 scale Zundapp motorcycle is there for comparison.
German truck, dragging Indy. The truck seems almost perfectly 1:72 scale, as the 1:72 Panther and figure show. the truck has a detailed cab, and the canvass top comes off to reveal the crate containing the Ark.
Mark VII tank. Not sure what scale this would be. Its too small for 1:72 and too large for 1:144. The turret rotates and the side guns traveerse. It rolls on wheels.
The Flying Wing. This would probably work with 1:144 scale; that is the scale of the Stuka sitting next to it. Judging from the film prop, the wing wasn't all that big of a plane.
I was in a rush taking these pics, and didn't get a comparison shot of the German bi-plane loaded. It is almost exactly scaled to those small Corgi WWI planes in the "Milestones" collections that were out several years ago.
