BMW offered the sedan as the ideal all-round car for customers working with a budget. The all-steel body had everything necessary in a car for the family: complete protection against adverse weather conditions, space for three adults or two adults with children, wide doors with convenient wind-down windows for easy entry, comfortable seats and a fully-fledged interior upholstered in fabric material. Curtains adorning the rear and side windows along with ceiling lighting created a homely atmosphere. There was even space for a small trunk behind the seats. The advertising department created the apt slogan "Bigger on the inside than the outside" ("Innen größer als außen").

A touring car version was also available for the same low starting price as the 2-seater and this was given the beautiful name of "Phaeton". The wood/steel body was also covered in leather here but the bodywork was extended in the rear so that an additional adult, or two to three children, could also be taken on a journey. This made the small car eminently suitable for families, particularly on account of its favourable price and the low maintenance costs. The rudimentary protection against adverse weather conditions consisted of insertable Cellon side windows and an all-weather canopy roof made of plastic material. However, there was no space left for luggage.

In an era when tradesmen still delivered their goods by bicycle, carts or motorised three-wheelers, the BMW express delivery van represented a significant advance. The name of the enterprise and graphic designs could also be affixed on the bodywork for promotional purposes. The main aim was to offer businesses a fast but cost-effective delivery van which enabled them to expand their customer service. The baggage compartment offered plenty of stowage space and larger items could be attached to the roof rails. The payload of 265 kg was astonishingly large for a small vehicle. The post office (Reichspost) also had a fleet of these small express delivery vans.

The advertising for the 3-seater convertible was completely tailored to women drivers. The contours mirrored the open-top four-seater (Phaeton). However, it had an all-steel body with high-framed doors and wind-up windows, along with a protective cover for the roof. The perfectly fitting soft top was made of corduroy fabric and had a lightweight lining, the side storm bars that stretched across the soft top gave the convertible a particularly sophisticated and classy appearance. However, if the top was closed, passengers sitting in the rear could no longer see out of the sides. The comprehensive equipment made the convertible the most expensive model in the series.

BMW delivered the value-for-money entry-level model in the form of the 2-seater for the cost-conscious gentleman driver who was more interested in the reliability of his car rather than in expensive luxury. The equipment was correspondingly rudimentary. The bodywork was a combination of wood and steel covered in leather. It provided space for two passengers with a small amount of luggage. The all-weather soft top was made of plastic material, the four side windows could be inserted in the doors and were made of Cellon with a faux-leather surround. When the car was being driven, very often only the two front windows were used in order at least to give the driver some protection against the headwind. The low weight made the car very manoeuvrable, and this was reflected in overall victory at the Alpine race held in 1929.

BMW offered its sun-loving customers a very special body version of the otherwise closed sedan in the form of the Sunroof Sedan. The middle section of the sedan roof was made of coated plastic for reasons of production. This was replaced by a design in which the rubberised roof material could be rolled up from front to back. This rolled-up roof was then fastened above the rear window using straps. That created a hybrid form made up of sedan and convertible in which passengers received a high degree of protection against draughts and yet were still able to enjoy an unrestricted view skywards.

The company advertised the beautiful 2-seater convertible for sporty ladies or gentlemen drivers. Although the contours mirrored the 2-seater, it had an all-steel body with high-framed doors and wind-up windows, along with a protective cover for the roof. Since the side windows remained fixed in place, the top could be opened and closed quickly in a few simple steps. The interior was upholstered in attractive faux leather, finished in a colour to match the paintwork. A trunk was located behind the backrest where even large items of luggage could be stowed conveniently and securely.

An extended engine hood, folding windscreen, an aluminium sports body with no doors and a boat-tail - these were the features of a genuine sports car that lots young enthusiasts craved. The centre of gravity was lowered and the engine performance was increased within the defined limits. Top speeds of 100 km/h were possible. Many much more powerful models struggled to achieve this. The Wartburg type became the first real sports car from the BMW marque and established an enduring tradition in motor sport that continues to the present day.

In the final model year, BMW made numerous improvements to the sedan in order to address criticism that had been levelled relating to lack of space and the hard front suspension. Design modifications significantly strengthened the all-steel body and the interior was lengthened by 20 cm. The greater length was primarily beneficial for passengers seated in the rear. The newly developed front swing axle held out the promise of better road holding and increased driving safety. However, contrary to expectations, the softer cushioning resulted in reduced overall stability and directional stability, leading to strident negative reviews from the trade press.

The last bodywork version was launched in January 1931: a coupé version of the 2-seater convertible. The intended target group was professionals who have to travel long distances overland with a lot of luggage for work but want to benefit from a maximum level of comfort and travel at high average speeds. The low running costs were an additional feature that was continually highlighted. Marketing campaigns were therefore always directed towards business travellers and medical practitioners. The coupé had perfect weather protection, a large trunk and offered the driver wide doors and comfortable seating.

In the very limited product range of the DA 4 model series, only the favourably priced wood/steel bodies of the two-seaters and the touring cars covered with leather canopy roofs survived as open-top versions. The bodywork remained unchanged by comparison with the DA2 models and only the front rigid axle was exchanged for the newly developed swing axle.

In the very limited product range of the DA 4 model series, only the favourably priced wood/steel bodies of the two-seaters and the touring cars covered with leather canopy roofs survived as open-top versions. The bodywork remained unchanged by comparison with the DA2 models and only the front rigid axle was exchanged for the newly developed swing axle.

In autumn 1932, a BMW three-wheeler delivery van with cardan drive and blower-cooled 200 cc engine generating 6 hp was launched as the Type F 76. For a starting price, the customer received a two-seater driver's cab that could be enclosed on request. The open platform had a payload capacity of 650 kg. Despite its high quality, the conveyance produced in Eisenach was unable to generate the desired sales successes. Only 250 units had been built by 1933 when a slightly more powerful version (F 79) was added.

In 1933, a second version of the BMW three-wheeler delivery van was launched as the Type BMW F 79. This van also had a cardan drive and blower-cooled engine. However, this engine had a displacement of 400 cc and generated an output of 14 hp. Like its sister model, the vehicle had a two-seater driver’s cab, which could be fully enclosed on request, and a high payload capacity of 650 kg. The load-bearing platform of the BMW three-wheeler van could be supplied with an open platform, a closed van body or a wide payload area with tarpaulin and frame. This model likewise failed to achieve high sales figures and production of BMW delivery three-wheelers was discontinued in 1934. From 1933 to 1934, 350 three-wheelers of the F 79 model were produced.

Compared to the predecessor model, the new sedan was now significantly more "grown-up" ("erwachsener") on account of its additional length and width. The extension of the wheelbase in particular was not simply a feature of the visual appearance, it also benefited the interior. Now there really was adequate space for four adults. The quality of the construction and tasteful equipment of the Sindelfingen bodywork made the small car a serious competitor in the German market in spite of its price tag. However, the automobile had little to fear from the competition when it came to engine performance and equipment.

The customer was able to purchase this special form of sedan at an additional cost of just RM 135. The middle section of the sedan roof was made of coated plastic for reasons of production. In the roll-top sedan, this was replaced by a design in which the rubberised roof material could be rolled up from front to back. This rolled-up roof was then fastened above the rear window using leather straps. Passengers travelling in this hybrid between sedan and convertible could sit half in the open air and were able to enjoy a view looking skywards while also giving them a high degree of protection against draughts.

The most athletic version was the two-seater, already exuberantly also referred to as a "roadster" by the copywriter in promotional literature. This was the most favourably priced entry-level model and offered two passengers adequate space in two comfortable seats. A simple folding hood provided protection against bad weather and insertable Cellon side windows could be used as necessary. The trunk accessible from behind was not simply useful for luggage but also provided space for two additional passengers if necessary, however there was no protection against wind or weather. Although this design was popularly referred to as a "mother-in-law seat", in practice it really only provided enough space for two children at most.

For the same price as the two-seater, a four-seater was also available: in the form of the touring car. This popular but very simple body shape offered four adequately dimensioned seats and rudimentary protection against adverse weather conditions comprising Cellon panes that could be inserted in the doors and a thin but largely waterproof canopy roof. A large trunk was mounted on the rear that could not be stowed in the interior.

Luxury in a small format is the best way of describing the convertible in the model series. The interior offered adequate space for four adults and tasteful equipment styled in genuine leather. The carefully crafted and lined folding roof transformed the convertible into an elegant all-weather vehicle. However, the passengers sitting in the rear were no longer able to see much when the roof was closed. And finally, the chrome storm bars recalled the styling of expensive luxury convertibles. The stylish chrome trims on the doors also highlighted the exclusivity.

"For the progressive businessman who attaches great importance to serving his customers quickly driving a van with a prestigious appearance" ("Für den fortschrittlichen Geschäftsmann, der Wert darauf legt, seine Kunden mit einem repräsentativ wirkenden Lieferwagen rasch zu bedienen"). This was how BMW advertised the new van. In fact, it had an astonishingly large stowage space for a small vehicle. In addition, the spare wheel and a large number of packages or larger items could be transported on the roof rails. In view of the strong competition from cheap delivery three-wheelers offering significantly more stowage space, the BMW was too expensive for the businessman thinking coolly only about the economic benefits.