Mercedes-Benz Concept Vehicles –
the Shape of the Future
Redefining the compact car: Vision A 93 and "Studie A"
"Rethinking the car" was the motto adopted by Mercedes-Benz when it presented its Vision A 93 concept car at the Frankfurt Motor Show 1993. A compact, front-wheel drive vehicle, Vision A 93 was a completely new departure for the brand. 
City-mobile: The Vision A 93 cuts a fine figure in elegant surroundings
With a few minor changes and under the new name "Studie A", the concept car was presented at the 1994 Geneva Motor Show. For the American magazine "Motor Week" it was "Best Concept Car 1994". The A-Class arrived on the market in 1998 and, despite initial problems, became a huge success story for the company. 
Vehicle 1:
Vision A 93
Fall 1993
Frankfurt International Motor Show
Vehicle 2:
"Studie A"
March 1994
Geneva Motor Show
A compact car incorporating innovative solutions on interior space and safety
1) Four-stroke three-cylinder gasoline engine, 1.2 liter displacement, 55 kW (75 hp), front-wheel drive, continuously variable transmission (CVT)
2) Three-cylinder diesel engine, 1.2 liter displacement, 44 kW (60 hp), front-wheel drive, continuously variable transmission (CVT)
3) Electric induction motor, 40 kW (54 hp)
Technical highlights
  • Sandwich floor Introduced 1998 in the A-Class (W 168)
  • ARTHUR (Automatic Radiocom Communication System for Traffic Emergency Situations on Highways and Urban Roads) First introduced by Mercedes-Benz 1998 in the Mercedes-Benz S-Class (W 220) under the name TELEAID
  • Navigation system Introduced 1995 in the Mercedes-Benz S-Class (W 140)
  • Three-cylinder engines Introduced in 1998 in the smart city coupe (smart fortwo)
  • Aluminum body
Further developement of the "urban and short-distance vehicle"
Following closely in the tracks of the "urban and short-distance vehicle" (NAFA) concept of 1982 and the F 100 research vehicle of 1991, Vision A 93 introduced numerous ideas which were new to the automotive industry.
Unusual challenges – Vision A 93 was to be small but at the same time spacious – called for unusual solutions. And that's exactly what the Mercedes engineers came up with when they developed the "sandwich floor". In Vision A 93 the engine and transmission formed a compact unit which sat mainly underneath rather than in front of the occupants – a solution which also helped to maximize interior space. The distance between the driver or front passenger and the rear-seat passengers was 82.5 centimeters. That was the kind of figure previously only associated with upper mid-range models, as the press information was quick to point out. The concept vehicle was just 3.35 meters long, and the first version of the production vehicle, the short-wheelbase A-Class, measured just 3.60 meters. Another benefit of the sandwich floor was the high seating position, which gave a better view and added to the sense of safety.
Please click on the pictures to enlarge them.
The sandwich principle also allowed Vision A 93 to meet the same high standards as other Mercedes-Benz models on safety. In a frontal collision, the engine was shunted out of the way under the floor, thus preventing intrusion into the passenger compartment. This is an ideal solution for a vehicle with a short front section and therefore a short crumple zone. In other respects too, crash safety conformed to Mercedes-Benz standards. Further safety features included full-size driver's and front passenger's airbags, belt tensioners, large side impact protectors in the doors and an integrated child seat in the rear.
On styling, the Vision A 93 engineers were faced with a creative challenge. The unusual proportions – short and tall – made coming up with an aesthetically pleasing overall design rather tricky. At the same time, although this was intended to be a small car it was not supposed to look small. But the designers proved equal to the challenge. What they did was to develop an "integral" shape with an appearance similar to that of a people carrier. The windshield was positioned well to the front, with a high roof and a level floor. The short front end was skillfully integrated in the overall design.
Please click on the pictures to enlarge them.
Environment-friendly design
A further important feature of Vision A 93 was environment-friendly design, for example as regards the powertrain. Three versions were presented. Two 1.2 liter, three-cylinder internal combustion engines – a direct-injection diesel engine (44 kW/60 hp) and a gasoline engine (55 kW/75 hp) – offered excellent fuel efficiency and lowest possible emissions.
They were combined with a continuously variable transmission (CVT), which brought further benefits for economy. At the same time a further version was presented which featured a 40 kW/54 hp electric induction motor, whose battery gave a range of 150 kilometers in urban operation.
Also, as the design specifications had envisaged, Vision A was well-suited for other types of alternative propulsion as well. Since 1997, Mercedes-Benz has been using the A-Class in fuel cell trials. This had been planned from the outset, and is mentioned in the original Vision A 93 press kit.
As Vision A and the A-Class demonstrate, even for an unusual design like this the timeframe from concept to production can be quite short. The new compact model proved something else as well: that unusual concepts will always find a place on the market provided they are well thought-out and genuinely focused on future needs.
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