Laurin & Klement 300 was an open top car manufactured by the Laurin & Klement company. Laurin & Klement 300 had a wheelbase of 3200mm and a the track width of 1350mm. The car had solid front and rear axles on leaf springs. The chassis weighted about 1000 kilograms. It was powered by a inline-four engine, which had a displacement of 4713cc. The engines bore was 100mm and the stroke 150mm. With the Zenith carburetor the engine produced 37 kW (50 hp).
The car was front engined and the engines’s power was delivered through a four-speed gearbox to the rear wheels. With the 50 hp engine, Laurin and Klement could reach a top speed of 80-90 km/h. Laurin & Klement manufactured 657 units of the Md, Me, Mf, Mg, Mh, Mi, Ml, 300 and 305 models between years 1917 and 1923. They all were powered by the 4.7-litre, 50 horsepower engine.