SdKfz 250 with 50mm AT gun
With the guys in front it is hard to tell for sure that it is turretless -- if it is, then it is a SdKfz 263 command car.
Panzerfunkwagen 8-Rad (SdKfz 263)
I believe this is what Blooz would call "prototype crap"Selbstfahrlafette IVa 10.5cm
United States 2 1/2 ton Cargo Truck (CCKW)5.5 tons1941
Appears to be some sort of modification of a Soviet T-30 or T-40
Krupp Kugelpanzer