Sd.Kfz. 7 (nim. Sonderkraftfahrzeug 7) was a German half-track transporter from the Second World War. The first prototypes were built in 1933, and serial production continued in the years 1934-1945, ending with the production of about 12,000 copies of this vehicle. The drive was provided by a single motor Maybach HL 62TUK or a Maybach HL 64TR with 140 hp. Sd.Kfz. 7 did not have fixed armament as a standard. The first models of the future Sd.Kfz. 7 were built in 1928 at the Krauss-Maffei company in Munich, but the vehicle did not enter serial production then because it violated the provisions of the Versailles Treaty. Only after the Nazis came to power in Germany, the technical solutions of earlier models were refined and the car was put into mass production relatively quickly. The Sd.Kfz vehicle. 7 was capable of transporting up to 12 soldiers and had a minimum armor not exceeding 8 mm. Despite the weight of up to 10 tons, the car had good off-road characteristics and high mobility. It was also mechanically refined and not unreliable. In the German armed forces, it served as an artillery tractor for cannons with a caliber from 37 to 88 mm. These vehicles were also used to tow 150 mm sFH18 howitzers. Based on the Sd.Kfz. 7, several specialized versions were created, including: Sd.Kfz. 7/1 (20mm self-propelled anti-aircraft gun), Sd.Kfz. 7/2 (also a self-propelled anti-aircraft gun, but with a caliber of 37 mm) or the Sd.Kfz. 7/5 (version being a self-propelled anti-tank gun cal. 75 mm). Cars of this type were used on all fronts of World War II in the period 1939-1945, both by the Wehrmacht and the Luftwaffe. Small amounts of Sd.Kfz. 7 served in Brazil, Bulgaria and Italy.Sd.Kfz 251 was a German, medium, half-track armored transport from the Second World War. The first prototypes of the vehicle were made in 1935, and serial production continued in 1939-1945, ending with the production of about 14,500 units. The Sd.Kfz 251 was powered by a six-cylinder engine Maybach HL 42 TURKM with 100 hp . Sd.Kfz 251 was developed as a new, basic half-tracked transporter of the German armed forces. Its design was based on the Sd.Kfz.11 heavy tractor, with several elements changed in the adapted chassis: a new fuel tank was added, the location of the steering wheel, and the exhaust system was redesigned. In the course of serial production, four basic versions of the Sd.Kfz 251 (Ausf. A, B, C and D) were created, however, in terms of details related to the production process (especially the C version) and a slightly different arrangement of elements inside the fuselage. During World War II, more than 20 variants and versions of the Sd.Kfz 251 were created. The chronological first was the Sd.Kfz 251/1, which was the basic version, armed with two MG34 or MG42 machine guns and capable of carrying up to 10 landing troops. In 1941, a version of the Sd.Kfz 251/2 was developed, armed with an 80 mm mortar. There was also a version of the Sd.Kfz 251/3, which was a communication and radio communication vehicle with various sets of radio stations and antennas. In 1942, the Sd.Kfz 251/9 Stummel variant was developed, armed with a 75mm StuK 37 short-barrel gun. More interesting versions were the Sd.Kfz 251/16 with two flamethrowers or the Sd.Kfz 251/20 UHU equipped with an infrared radiation emitter and intended for targeting at night. Cars Sd.Kfz 251 of all versions served primarily in armored divisions and armored grenadiers on virtually all fronts of World War II: from the September campaign (1939), through the campaign in France (1940), fighting in the Balkans and North Africa (1941-1943) after fights on the Eastern (1941-1945) and Western (1944-1945) fronts.