RV manufacturing has evolved significantly over the years. In the beginning, RVs were relatively basic and were made from converted buses or truck chassis. As RVs became more popular, manufacturers started to produce a wider range of models, including travel trailers, truck campers, and motorhomes. In the 1950s, RVs started to become more sophisticated, with the introduction of features like air conditioning and self-contained bathrooms. In the 1960s and 1970s, RVs became even more luxurious, with features like satellite TVs and full-size kitchens. Today, RV manufacturing continues to evolve, with new technologies and features being developed all the time