The Mercedes-Benz 170V was a type of Mercedes-Benz W136, introduced early in 1936. It replaced the six cylinder Mercedes-Benz W15, which at the time had also been known as the Mercedes-Benz 170. Despite having a similar engine capacity of 1.7 litres, the new car's four cylinder unit was more powerful. Technically and stylistically it was far more modern and could be sold at a lower price. Between 1936 and 1942 over 75,000 were built making it by far the most popular Mercedes-Benz model up till that point.